I’m confident this approach would work fine. One can have a team in multiple Glide accounts, and as long as you the Glide developer are an admin in each account, you can manage the projects in the team seamlessly from any account. It might seem confusing when reading this explanation but it’s actually quick and painless to set up.
EDIT: Once in the account and then project not connected to the Google account, I’m not sure what would happen if, in the project in the data editor, I’d click on the Google Sheets icon to open the Google Sheets spreadsheet in a new tab.