One other thing is heatsinks and fans
Ive read you don’t need either , and also that you do need them
I have my Pi 4 in the "official" (red & white plastic, said not to have the best in terms of ventilation) case with the official fan & heatsink.
The fan is set to come on at 80 °C to cool it down before thermal throttling occurs at 85.
The fan never comes on.
It does work, it just never gets that hot.
It idles around 55-60 depending on the season. While playing it creeps up into the mid-high 60s, and even reached into the low 70s this past summer when the temperatures were up but I've never seen it higher than, like, 74.
I don't overclock, or play much in the way of N64.