You can sync with immich also.
It literally is as simple as choosing which folders to include with the backups. You can set backing up just like google photos.
Otherwise you have to deal with their external library mechanics which has ballooned my 5k photos to a 1.3million in the database which broke immich.
And if it was an issue on github:
Closed: “couldn’t reproduce” 10 seconds after that last comment.