[imclaren]

I know this doesn’t help, but I reached the point where I just built my own alternative:

https://calmdocs.com

It was a lot of work but now I can sync multiple folders at once on macOS, not use the macOS file provider api, sync the macOS photos folder, access my synced files via an api, access file metadata (longitude and latitude so I can display photos from particular locations on a photo frame), listen to music in folders on the ios app, automatically transcode and watch uploaded videos on the ios app, etc, etc.

I’m using it myself and for a few others in private beta. My point is that sync done well can be done, it’s just that no-one seems to be providing the service.