@zenonp after upgrading from the RPi1 to the RPi4B I had some heat problem that were solved by having a fan moving the air inside the case https://discussions.flightaware.com/t/what-does-your-setup-look-like/57866/294?u=pretoescuro
Currently I have the RPi4B in a case with a fan that is controlled by Node-Red https://discussions.flightaware.com/t/what-does-your-setup-look-like/57866/354?u=pretoescuro
This is the historical temperature trend
