I had similar problems but I think that I found the solution. Take a look at my Post:
Hi,my name is Abdulrahman from Saudi Arabia. I just solved this exact same issue by turning off all app supervisions and operation restrictions. My thoughts were like; if the cpu is burning it's self to prevent apps from working this must be the culprit. Because it's doing that instead of the apps.
Before I reached this conclusion I kept watching my cpu temps in armoury crate and try to figure out, why the cpu is pinned to max frequency!?
Cpu temp between 55~61c°
Gpu temp between 47~51c°
System temp between 37~42c° it was so hot 🔥
I tried the following until I figured it out..
1- I took off the phone case.
Result: No improvement..
2- I tried restarting the phone.
Result: It improved for 5 seconds then pinned the cpu to max frequency again.
3- I switched on every measure to kill apps and clean the memory. I did it manually one app at the time too..
Result: Only to see the highest temps. This result made me start questioning the reliability of those app detection and restriction measures.
4- I uninstalled so many games and apps.
Result: No improvement.
5- I opened the device myself to see if there is anything inside going bad.
Result: This step didn't help.
6- Loosening restrictions on apps.
Results: Temps went down to;
Ambient temperature is around 25c° not sure though. I'm just guessing.
I hope this helps. Have a great one.
Switch off: Opti-flex
Switch off: Detection of Battery draining Apps
Switch off any similar gimmicks.
Currently at the time of writing this.
I think the system was doing too much to prevent apps from working.
its hppng after d new update i m facing exactlyy d same issue
hope asus will release a new update rectifying heating n battery draining issue
Update out next week to fix this bug. Just waiting on CTS