... without using any variation of Syncthing.

My phone is usually on the same Wifi network as my PC, so some sort of auto-syncing via wifi would be great. Like how Immich syncs from the phone to my server, in an almost totally hands-off way.

What are the best non-Syncthing FOSS phone and PC file sync options these days?

Thanks!

ETA: Sorry, sorry, I should have explained: I no longer trust any variant of Syncthing. The wild chain of events last year left me completely questioning what was going on with that code base. I struggle with trust issues for FOSS software every so often and once I feel things have gone awry, I can't go back again. Plus, I really want to know about what's new and interesting right now.

Link to one conversation about Syncthing's events, if you are out of the loop:
https://mastodon.pirateparty.be/@surfhosting/115674236291033568