Comment 12 for bug 1738534

The problem still persists.
Using latest stable Debian 11 and having the same issue - every time after suspend CPU turbo is disabled.

5.10.0-23-amd64 #1 SMP Debian 5.10.179-2 (2023-07-14) x86_64 GNU/Linux

A workaround I've found is to edit /etc/sysfs.conf:

mode power/state = 0777
owner power/state = root:root
devices/system/cpu/cpu0/cpufreq/boost = 1
devices/system/cpu/cpu1/cpufreq/boost = 1
devices/system/cpu/cpu2/cpufreq/boost = 1
devices/system/cpu/cpu3/cpufreq/boost = 1
devices/system/cpu/cpu0/cpufreq/scaling_governor = performance
devices/system/cpu/cpu1/cpufreq/scaling_governor = performance
devices/system/cpu/cpu2/cpufreq/scaling_governor = performance
devices/system/cpu/cpu3/cpufreq/scaling_governor = performance

change scaling_governor to any other supported mode (ondemand, conservative, etc.), then restart sysfsutils:

sudo service sysfsutils restart

and then change scaling_governor back to performance and restart sysfsutils again.