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I encountered a weird thing in my BIOS. I've got a graphics card and a CPU with integrated graphics, I could save power and free up some system RAM by turning the iGPU off. The option in the BIOS says "dGPU Only Mode" and you Enable it to turn the iGPU off.
dGPU Only Mode, turns the iGPU off. It makes more sense the less you think about it.
A further complaint: There's a setting in the BIOS called "Game Mode" and what that does is turn SMT and some other TLA off. SMT is AMD's name for hyperthreading. Learned this when I noticed KDE system monitor reporting 8 processor threads instead of 16. Apparently that is to increase single core performance on high end chips to wring a few more FPS out of single-threaded games, but meh.