The GPU (not CPU) is a graphics processor and used not just for gaming but also for more serious applications on your computer, everything from CAD, Photoshop and Teams meetings.
Sometimes the GPU needs a reset and may fix many problems with the GPU which are located on your graphics card or a SoC (system on a chip). This article by Windowsreport.com covers the simple keystroke settings for the GPU together with reinstalling the graphics driver under Windows.
