I had similar issues years ago and it was frustrating. What I do now is have syncthing on a 'server' that is always on and everything syncs to the server and not between each device. That reduced my conflicts by 99%. Another issue I had was accidentally deleting a folder and having it deleted off of all my devices.
To solve that issue I have my server do ZFS snapshots on my syncthing folder, which makes for easy recovery. With those 2 things being done, I can't say enough good things about syncthing. Compared to nextcloud it is almost maintenance free.
To solve that issue I have my server do ZFS snapshots on my syncthing folder, which makes for easy recovery. With those 2 things being done, I can't say enough good things about syncthing. Compared to nextcloud it is almost maintenance free.