Comment 7 for bug 1942616

I've solved the issue for my case.

I am running a system upgraded to Ubuntu 21.10 beta and long before we had this nice gnome power-profiles-daemon solution I had been playing with different daemons that would manage the CPU performance and mess with the state of intel_pstate/no_turbo. Daemons that I forgot to remove. After removing both cpufreqd and auto-cpufreq, the state of intel_pstate/no_turbo stopped flipping and the gnome performance power mode started working no longer complaining about high hardware temperature.

Now that it seems to be working, the only annoying bit is that the Gnome performance power mode state is lost across system reboot. Maybe this is by design but I think it should remember whatever state configured by the user - it is a bit silly having to go set the performance mode at every system boot.