Here are some possible solutions for those with overheating problems in addition to the hints offered above. I’ll use my current setup as the example. 12900kf/3080ti/5120x1440/Ultra settings/200TLOD. Oh, and I have it running in an Alienware case…famous for their cooling 
DX11/TAA/no frame limit/30-60 FPS range. GPU will be used 90-100%. GPU temp will climb to 81-82C, close the the set limit. Memory and hotspot will climb to low 90’s. GPU is pulling pretty much it’s design 350w. These temps are all within limits, but higher than I like them.
DX11/TAA/40 FPS limit/ 40 FPS most of the time. GPU usage down to the high 70’s. GPU temp drops into the 70’s. Memory and hot spot down to the 80’s. GPU usage drops into the 70% range. GPU power draw reduced by 30-50w. Much more to my liking.
DX11/DLSS/40FPS limit. GPU usage drops down into the 40-50% range. GPU temp drops to low 70’s, hotspot low 80’s, power draw up to 100w less!
CPU continues to show the same usage and temps regardless of the above settings.
Anyway…perhaps some settings to try if you’re running a little “warm”. Probably somewhat different on different machines but might help if you’re in a bind.
All data from GPU-Z.