A window opens then disappears.

As the title says, will this work on the game Garry's mod?

The program runs through Steam for a very long time. So I run it directly through the .exe file. However, after starting it - I don't even see it in the task manager, but the sight remains. How can I stop the program?

In the new update the enable full screen button is gone was that intentional or not

fullscreen crosshair in apex legends does not work, it recognizes the game but no crosshair is displayed