I have been using my self hosted forgejo in May, and liking it just fine, I recommend it for anybody who is curious. I don't really trust GitHub to keep things private anymore.
The hardest parts of switching to forgejo: 1) coming up with a comfortable way to pronounce "forgejo" in my head, and 2) adapting to not having the same GitHub v3 API and needing to switch to a different CLI for PR creation, repo creation, etc.
The pronunciation thing is probably the more difficult of the two.