ok, but requiring standard TOTP 2FA is one thing. that can be perfectly privately and without any real issue.
I see at least three issues: the extra cost, the extra layer of complexity it introduces, and the almost complete loss of autonomy it creates. Exactly like with public transits in many places switching to digital tickets instead of paper ones, save that it's much worse when it concerns our ID and personal security/authentication.
but that and mandating the usage of an app with built in snitching and which refuses to work on non google-approved devices are different things.
That would not be an issue at all if there was no requirement/expectation to use any phone or device of any kind to begin with. To me, that's the real point worth considering but it's also a point very few are actually willing to consider because 'technology is always the solution, never the issue' ;)