[CamouflagedKiwi]

Estimated completion by 3892 is cute, but not surprising really given that only 1/4 compilers and 1/3 stdlibs support these completely. Presumably most projects aren't going to try to migrate until it's more generally available (I haven't looked at them in years, not sure if it's easy or possible to support it for one toolchain but not another).

[Maxatar]

No compiler comes to close to completely supporting modules. MSVC is the furthest along and it does not by any means fully support modules. I think an upcoming version will finally have somewhat usable support for import std;