I double that. Some years ago I almost lost the entire synced state after adding a new device that hadn't synced anything yet. For some reason syncthing decided that the new device has the most recent version of the data and happily started deleting everything on the other peers. Thankfully I had a backup, and not all peers were connected. After that I concluded that syncthing is fundamentally broken.

I sync my org files using a low-tech solution: I have a .dir-locals file that injects a post-save hook that automatically commits changes to git and pushes them to the remote. It's stupid, but it works, and I never have to think about it.