Lets be clear. These "some license changes" that you reference was Forgejo forked Gitea and replaced MIT license with GPLv3. Forgejo doesn't want to be contributing to receiving effort from contributors into a project that then gets re-used, re-branded, and exploited by a big corp. By making the project copyleft they ensured that the contributions stay Free. This was an ethical move.
Gitea on the other hand doesn't mind sucking up free-of-charge contributions and handing them to a company to build their walled garden around.