I use LastPass authenticator for 2fa (note, I do not store any passwords in LastPass)

This way the authenticator accounts sync to my LastPass account and make device migration a breeze, I simply just sign into LastPass and then I can use authenticator immediately on the new device.

You could also use Microsoft authenticator (again with no passwords saved) to achieve the same thing.

I just didn’t want to bother with exporting and importing 2fa accounts when getting a new phone. Or worse, if my phone fails unexpectedly I don’t want to be unable to generate codes.

I don’t want my password manager to also have the ability to generator 2fa codes, gotta keep em separated.