I honestly can not think of any service I need that I must use my phone with. Plenty of things use SMS 2FA but I can also talk to people, face-to-face in most

I honestly can not think of any service I need that I must use my phone with. Plenty of things use SMS 2FA but I can also talk to people, face-to-face in most cases. Probably the closest would be the IRS if I have questions because calling them means being on hold for a few hours, otherwise I have to use snail mail which I have done.