Everything was forked and should eventually end up on F-Droid, but most things haven’t had a release yet. My understanding is that they’re hoping to do everything right immediately, including having proper new branding and all the shared functionality from Simple Thank You.

The F-Droid versions of SMT apps are perfectly safe and shouldn’t be going anywhere. (But if you have Google Play versions, I wouldn’t trust those anymore, those are owned by ZipoApps now.)

They were, no new releases yet though