I also never had the high wattage issue you experienced.
It’s a weird bug that only happens with certain system setups. It typically only happens when you have 2 or more monitors, one of which is 1440p or higher and has HDR turned on. A setup I unfortunately have.
Normal
Zen3 is OK to 95c TJmax, the cache would probably like to be cooler than 95 so you’re fine at 85
5700x3d is not a high wattage part tho if you have a big tower cooler it should easily be under 70c l, check mounting pressure, thermal paste (do not use a pad)