I've recently installed Ubuntu 20.04.01 LTS on my Lenovo Yoga S740 with Intel Core i7-1065G7.
I noticed that my laptop is always hot (around 60 degrees CPU temp) and the fans make noise, along with heavy battery usage.
Upon further research, I noticed that the CPU frequency is always around 3.5 GHZ.
The governor is powersave. I tried lowering the max frequency using tlp (for example, to 2.0 GHz) and it always stays at max.
This behaviour also happens when running the Live USB.
Added the output to the commands:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu1/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu2/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu3/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu4/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu5/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu6/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu7/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0
/sys/devices/system/cpu/cpu0/cpufreq/base_frequency:1300000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:3900000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:400000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences:default performance balance_performance balance_power power
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference:balance_performance
/sys/devices/system/cpu/cpu0/cpufreq/related_cpus:0
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:performance powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq:3015807
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:3900000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq:400000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed:<unsupported>
Kernel version is 5.4.0-47-generic