Can't you sign in using the smart card part?
https://support.yubico.com/hc/en-us/articles/360016649059-Us...
https://support.yubico.com/hc/en-us/articles/360016649059-Us...
I did get it set up correctly at some point but an OS upgrade wiped the settings. I’ll have to try it again, but the path for setup isn’t as easy as it seems.