Thanks for the reply! Turning off full screen mode sort of works. The popup appears now (yay!) but the Windows taskbar appears at the bottom. That is the game's issue though.

Hi,
Popups should work on all games that are started in Windowed+borderless modes, usually full screen exclusive modes blocks any popups to show.

I'm trying to get the Now Playing pop-up to appear but for some apps this is not working, specifically with Euro Truck Simulator 2. I actually like this feature and it works with other Steam games like Counter Strike but not with ETS2. Any way to get this to work here?