[NekkoDroid]

> Even std will be available as a module (C++23)

All 3 major compilers offer the std module in C++20 as an extension, at least I remember an issue where it was discussed and agreed uppon by all. I don't actually know if it was actually implemented (yet?).

[delta_p_delta_x]

> I remember an issue where it was discussed and agreed uppon by all

https://github.com/microsoft/STL/issues/3945