It’s just silly, nearly every game I have burns GPU when the game is idle. Trying out Dune Spice Wars now, and 90% GPU while sitting in an unanimated menu. Last night, the kid left Jusant paused, and instead of the PC going to sleep, it sat at high use all night.
No reason at all for this. OK, I get it, you want to keep some cool animations going behind your menu or pause screen. Still, drop the frame rate and let them die down after a few minutes.

The day people on laptops or cellphones start playing games?