Is it possible to use two-factor authentication on a Linux laptop running Kubuntu 18.04 without using a phone at all? If so, how?
I'm able to authenticate on my phone without any particular difficulty. But when I log into Coinbase under Kubuntu, I'm asked for a 2-step verification code. Running Authenticator under Kubuntu, I'm asked for a provider (presumably Coinbase), an account name (presumably my account name at Coinbase), and a 2FA token. It seems that both Authenticator and Coinbase are asking for codes, and neither of them are providing codes. It's like trying to connect a male plug to another male plug.
I would guess that I'm making a major conceptual error -- but what?