After a long search I discovered what seems to be the best practices solution for users that need to transfer files between Linux and Google Drive:

<https://cyberduck.io/?l=en>

The CLI version is very recent and its documentation, unclear.

The URL for Google Storage is of the form:

gs://[container]/[key]

My Google Drive account is the basic, freebie. I have looked around but don't know how to determine my [container] and [key].

TIA.

Addition:

I have found that that "[container]" is the same as a "bucket". However, the "[key]" remains as a mystery.