GitHub made a software U2F. I don't get it.

To use instead of google authenticator?

I don't get the point of having a second factor on the same device as your first factor.

Surely your first factor is in your head?

No, it's in my password manager because why would I only have one password? :-)

Heh, true enough.

And thus, my password manager is on my laptop and my second factor is my Yubikey or my phone. Authy Desktop is widely criticised, for e.g.

Yeah, I have my second factor as my phone or yubikey Been meaning to switch password manager to something better though. What do you use?

Mmm, you won't like my answer as it doesn't work on Linux :-) But I use 1Password. I really like it. It lets P and I share a common vault.