Another solution to avoid noise and fan management for orange pi 4 is to use a big heatsink (fanless solution):
Orange Pi 4 Heatsink
I tried it and it works well.
The temperature can rise to 85°C in peak (and 82°C in average) when I tried to stress the cpu with benchmark or with high resolution youtube video, but I never stayed stuck due to a overheat.
In normal use, I have more something between 58 to 65 °C.