You can only use U2F for what, github and google? I am a big fan, but the 30 other services I need to access to do my job use TOTP. We need all the help we can

You can only use U2F for what, github and google? I am a big fan, but the 30 other services I need to access to do my job use TOTP. We need all the help we can get on that until TOTP is finally phased out.