I recently purchased some YubiKey 5C NFC security keys and I'd like to start using hardware 2FA with my accounts. Are there any guides or documentation on how to set up such keys? For example, is there a recommended setup?, do I need google play services?, which browser(s) are compatible?, do I need the YubiKey app? etc. I'm fine with using NFC or direct connection via USB. None of my accounts are set up yet. Also, is it possible to use the built-in hardware security key present in the phone (Pixel 6a)?
I noticed the usage instructions list FIDO as a limitation, but this post seems to indicate it works fine.