What are your system specs? motherboard, cpu especially but others may be helpful.
I'm not sure I'd just call it a system glitch and leave it at that. The CPUz reading may showing the voltage the CPU is asking for while HWMonitor is showing what the sensor says the VRM is putting out. Neither may be what the CPU is actually receiving, neither seems entirely right in your scenario.
Whatever's happened it's certainly true a CPU can't last long overvolted that far and that makes it worth finding out what went wrong if at all possible just to be sure. If it were my system I'd open it up and measure the actual voltage on one of the VRM's filter capacitors and on the back side of CPU socket on the motherboard with a voltmeter before I'd accept it as OK.
What could I upload picture wise to help? Il tale some pictures and upload them for you to have a gander. It's a really confusing one as my CPU is running so cool, like 55c when stressed and the games are running better than ever too. This truly is a riddle.
I'm afraid I don't have access to a voltmeter.
Rog strix B450 gaming plus II mobo
Ryzen 7 5800x
Zotac amp RTX 2080ti 11gb
Corsair vengeance PRO DDR4 16gb RAM
Corsair 650w 80+ gold modular psu.
3tb samsubg evo m.2 SSD storage