Yubikey HMAC-SHA1 Challenge-Response?

Interesting - disabling OTP in NFC seems allowed to move forward. I was able to come into the next page: FIDO2 WebAuthn. The app opened this form in my default Android browser: Firefox. However after touching the phone with Yubikey NFC a popup message appeared:
An error has occurred. Please make sure your default browser supports WebAuthn and try again.”

I found this discussion on Bitwarden Github:

And this one:

P.S. Just enabled FIDO2 WebAuthn on 1Password app - everything works smoothly (on a same Android phone)