Extremely high GPU Usage by Desktop Window Manager

So since about 2 months ago I regularly am having issues with the Desktop Windows Manager. It randomly spikes up to 90% GPU Usage rendering every other Process unusable.

It occurs when playing games, when watching YouTube, and when rendering videos with Capcut. Even had it happen once when viewing Adobe PDFs.

But it doesn't occur instantly. Like right now I was able to play my game for \~1h without trouble and suddenly everything starts lagging, I open Task-Manager and see DWM at extremely high GPU usage. Even Taskkill-ing it has zero effect. It then never calms down unless I do a system reboot.

And due to DWM being at high GPU Usage my Laptop gets hot af.

I am running a Dell XPS 13. After having these issues I tried updating drivers. Still the same issue.

I tried some .reg file stuff. Still the same issue. I am actually losing hope with it.

Also tried googling but most posts state "it only looks like DWM is doing something but it isn't". If you just look at my framerates and how my fan is going into overdrive you'll know it clearly is doing something. I just don't know WHY and WHAT.

If someone can help me out, I'd appreciate it.

My HWINFO: [https://imgur.com/a/fFGYfxA](https://imgur.com/a/fFGYfxA)

Task-Manager when it happens: [https://imgur.com/a/JdW8ZUZ](https://imgur.com/a/JdW8ZUZ) Sometimes the game itself is at 70% GPU and then the DWM has another 90% GPU Usage on top.