Copyleft licenses are supposed to prevent to an extent this sort of free riding, but they are no longer "fashionable".

I don't see the point of refusing to add additional (copyleft) terms to a license, only to end up hoping companies act as if the terms existed out of good will.

Companies like Google love the permissive licenses, and go as far as to sponsor MIT/BSD-licensed replacements to common building blocks like toybox.

EDIT: I see that Forgejo v9+ is indeed GPL-licensed.