Where I've worked, they will hand out RSA-style tokens that constantly generate new codes if you don't have a phone or don't want to install an app on your pers

Where I've worked, they will hand out RSA-style tokens that constantly generate new codes if you don't have a phone or don't want to install an app on your personal phone. There are even tokens out there that will totally replace any Authenticator-compatible app since the token is programmable.