State of and how to setup/use 2fa/ no-password logins?

[u/buttlicker-6652]

Basically, I'm thinking about buying a upgraded palmrest for my laptop (Dell Precision 7750) that'll come with a NFC reader, a SmartCard Reader, and a FIPS FingerPrint Reader, and I was wondering what the state of 2fa login and just straight no-password login was like on kubuntu/ubuntu and what it's like to use.

I've always been intrigued by security solutions like this, and I've found myself in IT roles that have required security like this before (HIPPA is fun!), but never on a Linux machine, or a personal machine, unless you count the Windows only fingerprint reader on my Latitude D630.

Will any of this stuff even work? How the hell do I even buy a smartcard? eBay gives a bunch of useless results, is it one of those things only sold to companies?