The reason is a bit strange. To me it seems as if Zig is
just very opinionated. Personally I think the decision to
move to Codeberg was made independently of Microsoft being
a problem. I don't dispute that Microsoft is a problem; I
just don't see many great alternatives to github either.
Gitlab consistently is worse for me as a user.
I think the bigger problem is that these big megacorporations
control so much. I find Google even more problematic than
Microsoft these days in that regard. AI worsens this problem,
but even without AI it already was a problem.
Lets put it this way, no engineer is choosing to use bitbucket. You use it because some SVP made the mistake of choosing atlassian software a decade ago and refuses to change.
I used to use it, but left as it became apparent that Atlassian was increasingly incompetent in both software and business aspects to the point of both being badly broken.
I think the bigger problem is that these big megacorporations control so much. I find Google even more problematic than Microsoft these days in that regard. AI worsens this problem, but even without AI it already was a problem.