No drivers were needed for my Ubuntu setup or phone, but to have desktop Yubi authenticator app and turn on Linux hardware auth for sudo, login, TTY, I did add a ppa. There instructions for that were good though.
And when setting up any 2fa, need to have two keys and enroll them both, to give a chance of account recovery.
edit I purchased one for my wife and only properly understood when it arrived that it would need to be first used for all my 2fa, and then when helping her get setup I would need to have mine handy as her backup too.
And when setting up any 2fa, need to have two keys and enroll them both, to give a chance of account recovery.
edit I purchased one for my wife and only properly understood when it arrived that it would need to be first used for all my 2fa, and then when helping her get setup I would need to have mine handy as her backup too.