Greetings @RobertSchulze ,
Welcome and thank you for posting on the Instructure Community!
To my knowledge at this time, there is currently not a way to copy all of your Canvas Studio videos over to your google drive. You would have to download these videos individually to your computer.
However, after they're downloaded, to save you time when it comes to uploading these videos, I recommend saving all of these downloads to a specific folder on your desktop, and then doing a folder upload on your google drive instead of uploading each of the videos individually, it can save you time.
I hope this helps, even if this isn't the news you were hoping to hear.
All the best,
Noah