I didn’t mention: on September 9th I moved C:\Program Files\CMake\bin to the top of the PATH environment varaible list, and it was able to locate the compilers in powershell with the new long PATH:
I haven’t changed my PATH environment variable since September 9th.
It still works in powershell (with the post Sept 9 PATH), but not in VS (with the post Sept 9 PATH).