Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False

The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDpiAware() is not being called.

The workaround is to set bAllowHighDPIInGameMode=True

1. Enable 150% DPI scaling on a computer with a 4k monitor on Windows
2. Run a default template game client in fullscreen

Expected
The correct 4k resolution is used

Actual
A lower resolution is used and upscaled with Windows upscaler