Privacy-focused keyboard alternative for android. Has lots of features as well.
Meets minimum criteria, is well maintained and is also open source.
General apps subsection below Android main section
This looks cool, if this is added, I think it would also only be fair to add FUTO Keyboard. It’s what I use, but it is technically in alpha. I haven’t encountered issues, but maybe it could wait until a stable release.
I have tried both Futo and Florisboard. All of these keyboards have their own strengths/weaknesses but I mainly recommend Heliboard because it’s stable and has the least amount of issues on their repo.
I’ve been using HeliBoard since OpenBoard stopped getting updates. It functions smoothly without requiring much adjustment, which is why I always return to HeliBoard.
This is what I have been using for a long time.