I'm going to guess that Google will disallow this, soon if not immediately. They "block" Google Voice numbers from being used for some of their other services.

I'm going to guess that Google will disallow this, soon if not immediately. They "block" Google Voice numbers from being used for some of their other services. I couldn't use our GV number within Google Workspace, for example even though the account for that GV was outside the scope of the Workspace. Similarly, a number from a GV account inside the Workspace didn't work either.