If I had my choice, I would probably stop using a phone altogether. Just use a service like google voice (preferably NOT google anything), so there is a number I can give when services demand it. Exist purely on email, and only check it when I feel like it.

Unfortunately, wife would leave me over this. I value her and her (misplaced) needs for security/stability.

Also, no 2fa that "requires" a phone or similar device.