I don't remember exactly who it was, but someone mentioned the Authenticator app a while ago on Mastadon so I gave it a shot.
It's been the single biggest digital QoL improvement I've had in a looong time. Just press meta, type in sst (first letters of my username in my GNOME SSO), press enter. Boom, it copies my 2FA code to clipboard.
It's so convenient, takes away all the hassle from 2FA. So much nicer than taking out my phone all the time and typing it over.