If you use Linux as your desktop operating system, you can use all the options offered, except of course Windows Hello and macOS Touch ID, as an additional factor:

For the use of FIDO2 keys, we recommend the use of Chromium or Chromium-based web browsers.

(Please note that we do not offer specific support for Linux as a desktop operating system as standard, see https://short.boku.ac.at/it-software-operating-systems  )