TPM is a dedicated chip or firmware enabling hardware-level security, housing encryption keys, certificates, passwords, and sensitive data, “and shielding them from unauthorized access,” Microsoft senior product manager Steven Hosking wrote last month, declaring TPM 2.0 to be “a non-negotiable standard for the future of Windows.”
You can still use their source and software though.
Surely, they have their reasons for choosing GitHub over other alternatives.
I know I do, when I choose GitHub over others. (I’m not choosing Discord though.)