MSVC tends to like to tick off checkmarks that the other compilers would be hesitant to check off. So yes, MSVC can claim to implement modules and co-routines a

MSVC tends to like to tick off checkmarks that the other compilers would be hesitant to check off. So yes, MSVC can claim to implement modules and co-routines and pretty much all of the standard library, but in actuality it does so in a way that is unreliable and full of bugs. GCC and clang have those same features, but they avoid including them in their main distribution and instead have experimental/development forks that people can use, opting to include them only when they meet a much higher standard than Microsoft.