I haven't tried but that might be a limitation of the embedded browser used to render nFactor. For example, I have a Duo account in my lab that's configured to use my Yubikey via FIDO2/WebAuth. It works fine from browsers but the one integrated into Receiver doesn't have the capability, so I can't use that method. I'd log a ticket to get an official answer on if that's a known limitation and if so whether there's an existing RFE/delivery date for the capability.