I have yet to receive an email from GitHub about this. As it is, GitHub will send me a TOTP code by email when it sees that my IP address has changed. It isn't

I have yet to receive an email from GitHub about this. As it is, GitHub will send me a TOTP code by email when it sees that my IP address has changed. It isn't forced for every login. I don't see why this arrangement would change. In any case, a TOTP device is easy to build. I made a simple web page that can do this. It's a small snippet of code that you could download and run locally if it comes to that. There is no need to use a personal phone or other device. TOTP is a well-known standard (RFC 6238 & RFC 3548). No need for panic, lol.