It’s a otpauth:// protocol handler link, which should load fine on mobile if you have an app that supports it.

I do agree that displaying a QR code while on desktop would be more practical. As a workaround, you could use this addon on Firefox to display the otpauth:// link in a QR code format and scan that.

⚠ Be careful about not showing this code to anyone else, it contains the secret to the 2FA.> It is generally present in the website interface I’ve noticed.