I don't have a smart phone nor a computer with a fingerprint/face/whatever scanner. Am I right that my options are to spend $45 or so for a USB dongle, or conf

I don't have a smart phone nor a computer with a fingerprint/face/whatever scanner. Am I right that my options are to spend $45 or so for a USB dongle, or configure GitHub to send SMS messages? Or, since I only use my GitHub account to submit bug reports, do I need to worry about this? I don't know what's included under "authenticating Git operations".