Dell G7 fan control issue

I have a Dell G7 7590 laptop with an Nvidia RTX 2080 Max-Q GPU and I am experiencing an issue with the fan control. I believe a Dell driver/BIOS upgrade or Windows update caused it.

While I primarily use the laptop for web browsing, the fan starts at full speed and stops every 1-2 minutes, making it very noisy and annoying (this is not an exaggeration, unfortunately, it really behaves that way). I also know that several people have faced this issue before, the web is filled with stories and I read all I could find about this issue. I literally tried everything to make it stop and must be an expert on the topic now

I have tried multiple solutions such as cleaning the vents, changing thermal paste, upgrading/downgrading BIOS and drivers, updating to the latest version of Windows, disabling turbo boost and Intel SpeedStep/speedshift, using an external cooling pad, changing the power management thermal profile to quiet, deleting/reinstalling the Alienware Command Center, changing the fan bell curve in the Alienware Command Center, and undervolting the CPU/GPU.

I even degraded the laptop's performance to a point where I would get a steady ice-cold 36 degrees Celsius, but the fan still behaved the same way. I believe this is a software issue with getting the wrong temperature reading. I also observed a weird behavior from the Alienware command center where the GPU temperature was 0 degrees (it was obviously trying to read the Nvidia GPU even if the thermal sensor was off and the computer is using the intel GPU). I have had several laptops in my life and have never seen such bad fan behavior and was about to give up.

I found a temporary fix by disabling and re-enabling the Nvidia RTX 2080 device in the Windows Device Manager, which causes the fan to behave correctly and the correct temperature to show in the Alienware command center (Intel GPU temperature). Finally, the fan starts behaving correctly meaning that when the fan does need to start, it will start at a slow and steady speed. I was shocked as for sure the Nvidia GPU should never be active while browsing the web, the intel GPU is the one currently running. I tried to disable the intel GPU and only use the Nvidia one and the fan would still behave correctly and the right temperature was shown in the Alienware command center.

There is definitely an issue with this laptop where it can try to read thermal values from the wrong sensor which terribly messes up the fan control.