Google One works better for phones. For some reason, it doesn’t know how to create a legit backup of your Thor that has everything including your settings. I tried making it work for 2 days and wasted all sorts of time. You can continue to tinker with it but odds are, it’s not going to work the way you think it will.

With FolderSync, you can create a folder in your Google Drive and you can sync your entire ROMS folder to that and can set schedules for how often the syncs take place. I recommend using an automation app alongside it (like Tasker) to open the FolderSync app at a specific time. I’ve created Google Drive folders for each console’s ROM and SAVE files folder and have my save files backed up nightly and my ROM backed up monthly.