Searching comaps gets two top results looking the same. One is roughly 50mb and the other is in the 60s. The larger os Fdroid hosted and the other Izzyondroid.
What is the difference, which should I get?
It’s explained here: https://www.comaps.app/support/what-is-the-difference-between-the-different-android-download-sources/
Afaik on Izzy you can find the Codeberg version.
But it may be the play version, and the reason for the size difference is the built in world mapAccording to the information in the F-Droid client, the F-Droid build includes also binaries for x86_64, the one on Izzy (Codeberg) does not.
The world map shouldn’t be the issue as neither, the original Codeberg (Izzy) nor the F-Droid version have it built in, only the PlayStore version has it.
Yes, that’s more plausible