I have just wrapped up a streamed google drive for linux applet for myself and some others in my company.
It's essentially an rclone wrapper to make it faster and easier to rclone mount shared google drives, especially if you have a heap of them (we organise our biggish projects by shared drives)
Check it out and feel free to provide feedback if it's helpful: GitHub - Komanawa-Solutions-Ltd/google_drive_linux: a google drive client for linux
In that vein it might be worth compiling a list of similar projects so that others don't have to reinvent the wheel. I remember seeing some that focused on syncing files locally, but nothing that straight up mounted drives.