VScode shows more warnings than when building in terminal

[equeim]

When I build my (C++) project in VScode, it shows warning from winrt/base.h header (that I include) that's part of Windows SDK. However when I invoke cmake --build from the terminal (in VS dev environment), these warnings do not show up.

If I add /external:anglebrackets compiler option then these warnings disappear in VSCode too, but I would like to figure out what exactly is happening that the behaviour is different. Any guesses as to why it's happening?

[equeim]

#4217