Dell G7 17 7700 randomly overheating problem in Sleep mode

Hi. I have a problem. After closing the laptop lid, the laptop sometimes does not sleep (only some of the HW is switched off - only the screen goes out and the fans are switched off). But the CPU continues to run. This will be reflected in a few seconds when the temperature of the device rises to a very high temperature.

I have a Dell G7 17 7700 in the version of the i9 processor and the temperature reaches up to 95 degrees Celsius when I observe that even the individual plastics in the place of mounting the monitor begin to deform. The notebook is so hot up to half of the device (to the touchpad), but the plastics are no longer deformed.

This is probably a problem at the software level, so I solved it at this level:
Steps by which I tried to solve the problem:
1. driver update, including BIOS, via Dell Updater utility for Windows 10 (this did not solve the situation)
1b. I tried to set the BIOS to the default settings
2. I downloaded and installed the official version of ISO windows from your site with pre-installed drivers. And I deleted the previous version of Windows (clean install). (in a short time the problem reappeared)
3. I downloaded and installed a clean installation of ISO Windows (not from Delll but from Microsoft). (In a short time with e-discovered problem again).

When I installed Linux, the problem did not occur even once (testing for 9 days).

I'm currently solving the problem by not putting the laptop to sleep by closing the lid, but by selecting "Sleep" in the Start menu and only then closing the lid. That's how it works without problems.

A word in conclusion:
Deformation of the plastics bothers me but does not prevent me from working, and it seems that the laptop inside is not damaged because it works. I expect the service life to be shortened by a few years, and I'd like you to test Dell Notebooks better before selling them.

The defects that appear are more.
For example, some keys on the keyboard are squeaked when pressed. Or, occasionally, the Cortana icon appears on the taskbar in Windows, although this button is hidden (about every 4 days), which also affects clean Windows after installing the drivers (I assume that one of the drivers is causing this problem).

Otherwise, I'm happy with the laptop and it's a very successful machine. For that price (European market, Australian prices) I would expect much higher quality.