temperature rises quickly ...
I've just done some extended tests with Cyberpunk 2077 set to full, and it's heating up nicely even though it's not being used the most, easily reaching 70° or even 75° even though it's barely running at 35% of its capacity. Once the game is switched off, the temperature drops back to around 30° in a second (it's at rest). I cleaned it and put some thermal paste back in but no change (maybe the venti rad is too low, which wouldn't surprise me).
Apart from this big rise in temperature on a "big game", it runs without a care, even when running lots of things it doesn't exceed 50% use.