Sometimes, a process called Desktop Windows Manager (dwm.exe) works alongside the Client Server Runtime and consumes a lot of GPU.

Normal Resource Usage of Desktop Window Manager Under normal conditions, DWM should use no more than 100MB of RAM, 1% of CPU, and between 0.1 – 3% of GPU resources.

Desktop Window Manager (dwm.exe) service may report higher GPU usage on some RTX 30- series configurations [3830387] Workaround: disable Hardware-accelerated GPU Scheduling from the Windows Settings ...