Don't switch.

Long story short: Gogs was slow in committing pull requests. The maintainer says it's because he has specific standards, the community sees it as just slowness. Anyway Gogs was forked into a new version that is supposed to be more active and well maintained.

Well the forking lit a fire under the ass of the Gogs maintainer and he has since become much more active than he was. For a month there there was reason to switch to Gitea as it was adding features that Gogs did not have at a rapid pace, but Gogs is now mostly caught up and there is reason to prefer it. I personally would go with Gogs. 1 passionate person > design by committee of people with shared low responsibility.