Laptop occasionally freeze when the OS is turns off or suspend

Operating System: Manjaro Linux
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
Kernel Version: 5.8.11-1-MANJARO
OS Type: 64-bit
Processors: 8 × AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx
Memory: 14,6 GiB of RAM
Graphics Processor: AMD RAVEN
Laptop model: Honor MagicBook Pro 16.1 2019


I use Manjaro on the laptop for a while. When I poweroff or suspend the system from KDE power menu, occasionally system freeze, the black screen shows, cooling fans speed up, leds on the Caps and Fn buttons glow.

How can I diagnose the situation? What logs can helps?

Added some logs:
journalctl -b -0 -p err…alert