I find that so fascinating... I know GitHub since decades.

Over said decades I've worked on countless (open source) projects there.

Professionally? 1 project in all those years. Yes, exactly 1 (still there).

Every single other project was either in bitbucket, gitlab, gitea, forgejo or... I am sure I forgot some forge.

What I am trying to convey is: fascinating how "everything is on GitHub" is a very american way to see the world.