On an old netbook, we could read the temperature and control the fan speed by reading and writing the EC (embedded controller) registers.
Here is the command I use to read the registers and see the difference changes: sudo watch -d ‘perl ./ec_control.pl regs’
Find the script here: GitHub - casainho/GPD_P2_Max-Linux_tweaks
Can you guys test? the idea is to writing values until we find something that works.