Does this mean that a YubiKey 4 (not 5) could soon be used with Bitwarden on iOS? I tried connecting it to an iPhone via a Lightning<->USB adapter and FIDO U2F authentication was working fine in Safari.
However, the Bitwarden app only supports Yubico OTP. Thus, I registered the Yubico OTP interface via the Bitwarden browser app. The Bitwarden iOS app now shows below screen, but pressing the YubiKey does nothing. I’m not sure if Yubico OTP is even supported via Lightning adapters.
