Hi @bmff.engagement,
You can mount your C folder directly to the Google Drive remote folder by using a command like:
mount "$HOME/C" "/Google Drive". I think this will set it up the way you want without having to rename things.
The .cloud and .cloudf files are placeholders that need to be downloaded/expanded if you want to work on them locally. In their placeholder form they represent what is in the cloud. To download/expand you use the sync command.
You can use a one-line script to perform a recursive download (expand and download everything in the chosen , expanded folder). See here for more details: