it is what it is.

Isn't the whole point of git that the repo is cloned in a million places. You can switch the remote repo really easily?

Maybe i'm wrong; I stopped using github years ago. And I don't do a lot of collaborative stuff, so I'm happy with just local git + rsync, local backups for most things. Maybe it has loads of unique features I've never noticed.

I'm sure there are ways to scrape other data off the platform too. For example:
https://docs.codeberg.org/advanced/migrating-repos/

I'm not saying the alternatives are necessarily better for every project. Maybe github really is best for some - but it is a choice of the project to use github. They can move if they prefer the set of features of another repository.

I'm not convinced by anyone using "critical mass" justification for choosing github, that sounds like stockholm syndrome even though you have a key to the door.
"Too lazy to switch" that's legitimate; if a wee bit dissapointing.
"Doesn't allow my special sauce proprietary licence" - well . . .