you have a high temp inside your desktop : more than 50°C
add kernel 6.0
sudo mhwd-kernel -i linux60
redo after
sudo sensors-detect
can you add thes parameters on boot kernel
in /etc/default/grub
on line GRUB_CMDLINE_LINUX_DEFAULT=
sudo nano /etc/default/grub
sudo update-grub
amd_iommu=on iommu=pt processor.max_cstate=5 amd_pstate.shared_mem=1 systemd.unified_cgroup_hierarchy=true"
see this for amd pstate ( with kernel 6.0 or more )