Boundaries in South Aegean

Following up on my post yesterday (https://forum.openstreetmap.org/viewtopic.php?id=71201), I checked in detail the boundaries for the South Aegean and found more discrepancies. I’m certainly offering to fix these issues myself, however, I do not feel entitled to change boundaries in Greece without contacting the Greek OSM community first and receiving their approval that the cases brought forward are valid and correct. Please check them and give me feedback so that we can improve the boundaries:

Case 17: Oxia

The island of Oxia is, according to geodata.gov.gr and GADM, part of the municipality of Symi (admin_level 7). It is not assigned to any municipality in OSM.
https://www.openstreetmap.org/relation/541639

Case 18: Agios Emilianos

The island of Agios Emilianos is part of the municipality of Symi (admin_level 7) as reported by geodata.gov.gr. It is not assigned to it in OSM.
https://www.openstreetmap.org/relation/1119018

Case 19: Prasonisi

The island Prasonisi is not assigned to any municipality (admin_level 7). It is not included in any municipality according to geodata.gov.gr but that may be a mistake.
https://www.openstreetmap.org/relation/1119024

Case 20: Anydros

According to geodata.gov.gr, the island of Anydros is part of the municipality of Ios (admin_level 7). In OSM, however, it is part of Santorini (municipality of Thira). The English wikipedia page https://en.wikipedia.org/wiki/Anydros also suggests that the island belongs to Thira.
https://www.openstreetmap.org/way/590835441

Case 21: missing islands (rocks) around Kos

According to geodata.gov.gr, there are a couple of islands (or rocks) that belong to the municipality of Kos (admin_level 7). The islands show up on Bing and Google satellite imagery but are not included in OSM.
https://www.openstreetmap.org/?mlat=36.75088&mlon=26.99011#map=17/36.75088/26.99011

Case 22: Megalo Glaronisi and Mikro Glaronisi

According to geodata.gov.gr, the two islands Megalo Glaronisi and Mikro Glaronisi belong to the municipality of Kalymnos. In OSM, they are not assigned to any municipality (admin_level 7).
Megalo Glaronisi: https://www.openstreetmap.org/way/4890724
Mikro Glaronisi: https://www.openstreetmap.org/way/4890725

Case 23: East Imio and West Imio

These islands seem to be a problematic case. In geodata.gov.gr, both islands are part of the municipality of Kalymnos. In OSM, they are not assigned to any municipality (admin_level 7). East Imio is according to the current Greece-Turkey boundary in OSM located in Turkey, however the boundary is marked as disputed. East Imio is part of several conflicting relations: the state boundary is Mugla (Turkey), the administrative boundary is Aegean Region (Greece), and the country boundary is Turkey.
East Imio: https://www.openstreetmap.org/way/623804058
West Imio: https://www.openstreetmap.org/way/623804060

Case 24: unnamed island close to Amorgos

According to geodata.gov.gr, this unnamed island belongs to the municipality of Amorgos (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/8682686

Case 25: unnamed island close to Amorgos

According to geodata.gov.gr, this unnamed island belongs to the municipality of Amorgos (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/node/4897691969

Case 26: unnamed island close to Amorgos

According to geodata.gov.gr, this unnamed island belongs to the municipality of Amorgos (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/401642940

Case 27: unnamed islands close to Amorgos

According to geodata.gov.gr, these two unnamed islands belong to the municipality of Amorgos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/475312135
https://www.openstreetmap.org/way/475312136

Case 28: unnamed islands around Kimolos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Kimolos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/495635960
https://www.openstreetmap.org/way/496322361
https://www.openstreetmap.org/way/495507331
https://www.openstreetmap.org/way/495507231

Case 29: Kalogyros

According to geodata.gov.gr, Kalogyros belongs to the municipality of Kimolos (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/10214785

Case 30: Manolis

According to geodata.gov.gr, Manolis belongs to the municipality of Kimolos (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/676950754

Case 31: unnamed islands around Antiparos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Antiparos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/508449545
https://www.openstreetmap.org/way/494427122
https://www.openstreetmap.org/way/508447703

Case 32: Xifios, Kidoni, Petalida

According to geodata.gov.gr, these islands belong to the municipality of Antiparos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
Xifios: https://www.openstreetmap.org/node/4861875019
Kidoni: https://www.openstreetmap.org/node/4861873821
Petalida: https://www.openstreetmap.org/node/4861860094

Case 33: Kampana, Vr. Peponas, unnamed islets

According to geodata.gov.gr, these islands belong to the municipality of Paros (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
Kampana: https://www.openstreetmap.org/way/405068200
Vr. Peponas: https://www.openstreetmap.org/relation/7213407
unnamed islets:
https://www.openstreetmap.org/way/495708861
https://www.openstreetmap.org/way/495708447
https://www.openstreetmap.org/way/503082777
https://www.openstreetmap.org/way/495705119
https://www.openstreetmap.org/way/495704975

Case 34: Mermikas

This reef does not appear in the geodata.gov.gr dataset but in OSM it is assigned to the municipality of Paros (admin_level 7). Does it really belong to Paros as it is located outside the Paros regional unit boundary (https://www.openstreetmap.org/relation/5323643).
Mermikas:
https://www.openstreetmap.org/way/656988288
https://www.openstreetmap.org/way/656988287

Case 35: unnamed little islands around Naxos

According to geodata.gov.gr, these islands belong to the municipality of Naxos and Lesser Cyclades (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/495715712
https://www.openstreetmap.org/way/495715718
https://www.openstreetmap.org/way/495715756
https://www.openstreetmap.org/way/499713909
https://www.openstreetmap.org/way/499714013
https://www.openstreetmap.org/way/499500779
https://www.openstreetmap.org/way/521204116
https://www.openstreetmap.org/way/521204115
https://www.openstreetmap.org/way/495712661
https://www.openstreetmap.org/way/542077821
https://www.openstreetmap.org/way/495713322
https://www.openstreetmap.org/way/495714448
https://www.openstreetmap.org/way/495714588
https://www.openstreetmap.org/way/229796881
https://www.openstreetmap.org/way/10218382
https://www.openstreetmap.org/way/495717648
https://www.openstreetmap.org/way/501510553
https://www.openstreetmap.org/way/501510515

Case 36: Island assigned to Naxos and Lesser Cyclades

This island is, according to geodata.gov.gr, not assigned to any municipality. However, in OSM it belongs to the municipality of Naxos and Lesser Cyclades. Is there a governmental source that confirms this?
https://www.openstreetmap.org/way/8684794

Case 37: unnamed islands around Leipsoi

According to geodata.gov.gr, these unnamed islands belong to the municipality of Leipsoi (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/502420084
https://www.openstreetmap.org/way/502420220
https://www.openstreetmap.org/way/502420205

Case 38: unnamed islands around Patmos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Patmos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/502791063
https://www.openstreetmap.org/way/502793548
https://www.openstreetmap.org/way/502793576
https://www.openstreetmap.org/way/502793581
https://www.openstreetmap.org/way/502793951
https://www.openstreetmap.org/way/502793914
https://www.openstreetmap.org/way/502793996
https://www.openstreetmap.org/way/502793998
https://www.openstreetmap.org/way/502794083
https://www.openstreetmap.org/way/502794106
https://www.openstreetmap.org/way/502794347
https://www.openstreetmap.org/way/794505101
https://www.openstreetmap.org/way/794505100
https://www.openstreetmap.org/way/794505099

Case 39: islands around Serifos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Serifos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/495171924
https://www.openstreetmap.org/way/495171962

Case 40: island around Kea

According to geodata.gov.gr, this unnamed islands belongs to the municipality of Kea (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/8892010

Case 41: island around Syros

According to geodata.gov.gr, this unnamed islands belongs to the municipality of Syros-Ermoupoli (admin_level 7) but it is currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/10221529

Case 42: islands around Mykonos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Mykonos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/496785199
https://www.openstreetmap.org/way/496785056

Case 43: islands around Tinos

According to geodata.gov.gr, these unnamed islands belong to the municipality of Tinos (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/496777043
https://www.openstreetmap.org/way/496777076
https://www.openstreetmap.org/way/496777508
https://www.openstreetmap.org/way/519106268
https://www.openstreetmap.org/way/398605526

Case 44: islands around Andros

According to geodata.gov.gr, these unnamed islands belong to the municipality of Andros (admin_level 7) but they are currently not assigned to any district at the admin_level 7.
https://www.openstreetmap.org/way/10221558
https://www.openstreetmap.org/way/496778128
https://www.openstreetmap.org/way/515295852
https://www.openstreetmap.org/way/515295819
https://www.openstreetmap.org/way/10221534
https://www.openstreetmap.org/way/507033117
https://www.openstreetmap.org/way/355293998
https://www.openstreetmap.org/way/219512232
https://www.openstreetmap.org/way/10221557
https://www.openstreetmap.org/way/355293997
https://www.openstreetmap.org/way/507033666
https://www.openstreetmap.org/way/355294002
https://www.openstreetmap.org/way/496780798
https://www.openstreetmap.org/way/507033667
https://www.openstreetmap.org/way/496780775
https://www.openstreetmap.org/way/10221575