For reference, the beta versions have some changes to help address these:
.1648
* Fixed an issue where a read-only force attach would fail to mount successfully if the storage provider did not have write access and the drive was marked
as mounted.
.1647
* Fixed an issue where read-only mounts would fail to mount drives when write access to the storage provider was not available.
.1646
* [Issue #28770] Added the ability to convert Google Drive cloud drives stored locally into a format compatible with the Local Disk provider.
- Use the "CloudDrive.Convert GoogleDriveToLocalDisk" command.