We have an update on the Google Authentication situation.
For Google Sheets and Google Drive, you should now be able to use the Google Authentication node again. For it to work you have to make sure to deselect the Google Analytics scopes in the node’s configuration dialog. Google applied some restrictions, so that authentication does not work when requesting the Google Analytics scopes at the moment.
For Google Analytics, for the time being, you have to continue using the Google Authentication (API Key) node.
Sorry for the inconvenience.