I still use one. Granted it’s on a grandfathered google apps free account (or workspace now).

I see that as a net INCREASE in security. Google cannot now summarily shut down my access and rob me of accounts/emails. If they did so I could move my mail to a different service or just temporarily self host.

Mfa is still the same google auth as a gmail account. And the registrar (Hover) is MFA enabled as wel, using not only my primary account but a backup just in case.

Ultimately I have more control. And I’m not subject to having my account held hostage by a company with a history of pretty poor support responses that can’t be handled by algorithms.