I dont speak for everyone, or many people in either. But some people use mastodon since it is free software - and I do.
I also use it because the community is better.
However, lets say that you decide to move to Codeberg instead of github. How much easier would it be for you to provide feedback to that platform? Would the Gitea/Codeberg devs listen to your oppinions? I think so.
Anyway, in the end it is your choice, but I do hope that you reconsider :)