@[email protected] @[email protected] My son uses Obsidian on an iPad with Mobius Sync (apps.apple.com/us/app/m%C3%B...) and it seems to work pretty well. That said, he's comfortable using a diff program on conflicting markdown files if a conflict occurs (Syncthing defaults to adding the conflicting file with a suffix to your local file system). My wife also uses Obsidian with Syncthing, but she has a very definite 'source of truth' device - editing on the fly is nice but conflict resolution is nearly always 'the laptop wins'.
Again: reliable, works, but to be as reliable and flexible as it is you sometimes need to understand what it is actually doing (moving files around between file systems) rather than a plugin/integration where somebody else is choosing things like conflict resolution strategies for you.