I have a Yubico FIDO U2F. It works with tons of sites and services but I usually opt to using 2FA one-time codes since it's quicker (I can pull up the Authy cli

I have a Yubico FIDO U2F. It works with tons of sites and services but I usually opt to using 2FA one-time codes since it's quicker (I can pull up the Authy client on my desktop or phone). My key doesn't always work in every computer I have. It works out of the box in Linux but Windows needs to download drivers and the time that takes is more than just doing a one-time code. It is helpful to have, I only need either my keychain or my phone to get into my most important sites and services.