Am I misunderstanding something?
https://overturemaps.org/april-overture-release/
“Today we are making a pre-release data set (2023-04-02-alpha) available that has incorporated some of the new features that we plan to build in Overture.”
“we’re leaning heavily on OSM data… The core dataset in this release combines the contributions of the global OpenStreetMap community”
https://overturemaps.org/download/overture-april-alpha-release-notes/
“it is open data and available under the CDLA Permissive V2.0 and ODbL licenses”
You can’t take OSM data and redistribute it as CDLA Permissive. Are they saying that their download is a Collective Database where (somehow) some “layers”, presumably identified by tags, are CDLA-Permissive and the rest is ODbL? Or am I entirely missing the point (always possible)?