With the official app no longer updated (i don’t trust the forks), i’m looking for alternatives for 2 way sync between my Android phone and my Linux server. I’ve tried nextcloud a long time ago and the experience was very bad. Are there any new tools that i can use?


Synching fork has been passed to a new maintainer for a couple months now. The new github is https://github.com/researchxxl/syncthing-android.
If you were using the old catfriend1 version, update your fdroid version and the source will switch over.
This is all out in the open and is resolved, there have been several app updates since then.
There was a lot of suspiciousness around the transfer at first, has that been resolved?
The maintainer for the Play Store version recently started maintaining a non-Play Store version as well.
He archived it.
That link returned 404 for me
It worked for me? Not sure if OP changed it, but it goes to the latest repo just fine.