That Fera 5 is a strong CPU Cooler (TDP rated 220 watts) and it is doing its job of keeping your 5600x processor from getting too hot or overheating.
The 5600X has a Maximum Operating Temperature of 95c so under heavy loads or Stress it only reached 72c Maximum that is very good temperatures. As long as temperatures doesn't reach 95c you are fine. But if you noticed that it is running hotter on average like going over 85c I would check to see if the CPU Cooler needs to be cleaned or the air circulation has gotten bad for some reason.
The 5600X is rated at a TDP or 65 Watts so your CPU Cooler should have no problems in keeping your processor running cool.
Also as for those light loads or idle temperatures you might have a lot of background programs running that can make the processor run warmer than normal in those types of situations.
But if idle is 40c it is very good for your CPU Cooler.