How to add Microsoft Store/XBox Game Pass Games

How to add Microsoft Store/XBox Game Pass Games

Recently I've joined XBox Game Pass, which I love, and it's representing more and more of the games I play on my PC. Unfortunately, there seems to be no way to add Game Pass (or any Microsoft Store-originated) games, since there's no way for the user to directly access the executable directory and files.

Is there a workaround, and if not can support for Microsoft games be added to the Swiftpoint profile software?