(somewhat away from the original request, but still worth mentioning I think)
Unfortunately, the inclusion of Gibraltar on a list of “Non-Self Governing Territories” there, and the exclusion of the Chagos Islands from that list doesn’t reflect well on the veracity of the rest.
What it does help demonstrate is that all maps have a point of view - in a sense all maps are political. You can show “who controls what” or “who claims what”, but there is no superior independent authority, only various lists of countries and other organisations that support particular views. The UN is one of those lists, an important one, sure - but not the only one, and certainly not the arbiter of truth in all cases.