Sorry - but your example is NOT one that should be followed. You’ve created a folder for your Roon Backups that is inside your Watched Folder (InternalStorage). As the Help article says (highlighted in red):
We strongly recommend that you do not set the location of Database Backups to be within any Watched Folders because Roon will try to scan that directory and scan the Database Backup itself. This can cause issues, so please keep the locations separate.