Do not ask why… At the pc, unfortunately I can't install anything in the mircosoft store (some error message and the error I just can't fix). So there's a possibility of the laptop on the PC to transfer with USB stick and if so in which folder I have to do the files then…
If this is a normal game, then push it somewhere and install it there. If the game requires an add-on application (for example, Steam) then you must take it with you and put the game in the appropriate folder for it
Yes, but where are games from the Microsoft store installed!
Is it possible to transfer a Microsoft game from a laptop to a pc with a usb stick, if so, in which folder?
---> no
Certain entries in the registry are made that would be missing when just copying the game. Therefore, this does not work the way you imagine.
Under Linux with wine, winetricks and playonlinux, this is just possible. In the latter, the games are installed in so-called "bottles". These directories are completely on e.g. Copying a USB stick and copying it to another Linux-based PC with Playonlinux you can also use the game on other PC systems.