I just got a MSI Bravo 15 Laptop with a Ryzen 4800 H and a Radeon M5500.
For some reason when switching to Fullscreen using ChangeDisplaySettings() in Visual Studio, Windows fails the switch to fullscreen and sends a failed message.
I updated the Chipset Drivers and the Radeon Drivers.
I also enabled GPU Scaling in the Radeon Software.
But still no support for Fullscreen.
Anybody knows about this issue?