Ok. Did a quick read. And I think I mixed my words a little.
Yes, Active Directory supports TOTP fine.
But my understanding is rollouts can disable TOTP, and instead force the use of the proprietary scheme requiring the MS Authenticator app (which also supports TOTP) that uses push notifications to the device.
As is the case with my employer. They didn’t enable TOTP, and I am unable to use the provided MFA QR code with 1Password.
Super Thunder Blade did this, same era too.