I would try to select based on the merits of the project and its adoption instead of drama.

For me the team behind meshtastic needs some help behind their approach to APIs, the app releases frequently break that contract and they probably just need a little help in that area to improve it.

Meshcore sounds compelling to me because it has that fixed vs dynamic target approach which I suspect is more true to the real world given folks are standing up solar powered radios attached to fixed points and then trying to send messages from their phones.

Edit: I guess meshcore isn't really a real project.