@omar@bsd.cafe hi! I'm not sure if I qualify as a long-term user, I've been using it maybe 4-5 years now. But regardless; I've disabled public relays usage on my setup as I only want to have it exposed in my home network and over my VPN anyway (which is Tailscale for convenience these days, but was a self-hosted Wireguard thing before that).I've never actually noticed any issues with my setup, so long as whatever device I'm using is able to talk to my home server (which runs Syncthing in a docker container), it's been able to sync everything just fine.I must admit I've never used it on Android though, mostly because I like to keep my phones as "dumb" as I can make/keep them.For reference, I use it for a variety of documents, screenshots I make on my computers get sent there too (~/Pictures/Screenshots is a symlink to a directory in my Syncthing directory), and even have a few Flatpak-installed application configuration files/directories in there (again, symlinked from where these apps expect them to be).Darktable is one such app, it's just so nice to be able to pick up where I left off with my full library on any of my computers. The actual photos themselves are accessed through an NFS share from my home server, but Darktable's settings and library database and related files are kept in-sync with Syncthing.I don't remember ever having a merge/sync conflict, it's just been rock solid for me.I use the "Syncthingy" flatpak app on all my computers, as it's been working fine for my needs all this time, even when I was using Fedora Silverblue (Atomic Desktop) and tried to layer as few system packages as possible. I'm sure without that restriction Syncthing proper would be equally fine.I hope this helps!