Does the message only say that it's not able to connect to Google Drive, or does it give any more details? Could you provide more details on how the connection is failing exactly? I'm assuming it fails when you try to connect to the storage provider during a script execution in IBM RPA Studio right?
I just tested it with a Google Drive connection of my own here and it's working just fine. Can you send me your studio code attempting to connect to Google Drive so I can check if anything is missing. No need to share the details to the G Drive connection itself, I just wanted to look at how the script looks.