Count the number of red squares in GCC and MSVC++ versus clang.

“It has more red boxes” is not equivalent to “everyone wonders why it’s behind”, which is clearly hyperbole.

I advise you to spend some time on /r/cpp.

Then you'll see where people are wondering.

Want to use modules on clang? Wait at least another year more.

No wonder that Red-Hat is hiring for clang devs, alongside the contributions they already do for GCC.

>Want to use modules on clang? Wait at least another year more.

This seems wrong. Clang+LLVM has supported C++ modules for a while.

Not at all, it supports its own way of doing modules with header maps.

Proper ISO C++20 modules are yet to be supported.