Managing personal Outlook.com account settings, security, and privacy
It may have to do with having a new gmail account or it still being in trial mode. However, I sent this screengrab video of me unsuccessfully loading a new google workspace account into Outlook365, and then successfully loading another older google workspace email using the same exact steps. https://drive.google.com/file/d/1tx0H2aoPUN_Xi47GF9dN37JRYG2_C-ig/view?usp=sharing
Google replied that it is a problem on Outlook 365s side, but still doesn't make sense why one google workspace email is working, but another isn't.