Newer CPU’s tend to use a good chunk more power under low loads than some older ones. Going from 1st Gen. Ryzen to 2nd Gen. got me about 20 watts higher total system power draw with my use case. And 3rd Gen. is even worse.
Intel is MUCH worse at it than AMD, but every Gen. AMD keeps cranking up those boost clocks and power draw and it really can make a difference at low to mid range loads.
My Ryzen 3000 based system uses about 90 watts at “idle” with all my stuff running and the hard drives on.