gcc seems to have full C++20, almost everything in 23 and and implemented reflection for 26 which is probably the only thing anyone cares about in 26.

https://en.cppreference.com/w/cpp/compiler_support.html

Funny how gcc seems to be the top dog now, what happened to clang? Thought their codebase was supposed to be easier and more pleasant to work with? Or maybe just more hardcore compiler devs work on gcc?