After noticing that no web browser seems to support 5.1 Surround Sound in the Plex Web app (if someone can help me with this please let me know) I downloaded the Windows 10 Store app. As usual, the app is great and runs smoothly like everything from Plex. However as soon as I put my video stream on full screen the video starts stuttering and it freezes my entire computer if I leave it like this for a few seconds. As soon as I put it in windowed mode again it works perfectly fine. After a bit of troubleshooting I detected my G-Sync setup as the source of the issue. G-Sync is a technology that synchronizes the refresh rate of your screen and your computer. This seems to cause the issue because I have the setting active, that G-Sync only is enabled when a game/app is in fullscreen mode. This matches with the error pattern. Also, when I disable G-Sync everything runs perfectly.
Of course it would be great if you could reproduce or fix this issue but I would also be very satisfied already with a workaround. I know I can make G-Sync exceptions for certain programs with the NVIDIAInspector but I wasn't able to do it for a Windows 10 app. Within the NVIDIAInspector I can add .exe files that get affected by the rules I set but when I add the "C:\Program Files\WindowsApps\CAF9E577.Plex_22.214.171.124_x64__aam28m9va5cke\plex.exe" file then nothing changes. I'm really not sure If I got the right exe as I have now idea how Windows Store apps work.
Alternatively if someone could help me set up 5.1 audio in a web browser I would also be happy.
Thanks a lot in advance!