My previous laptop broke, it's currently in repair shop. I had to get a new one, so I've bought this pre-owned laptop instead of buying a new. I've updated the h-node database: https://h-node.org/notebooks/view/en/2398/HP-ProBook-650-G4/1/1/undef/undef/undef/undef/compatibility/undef/undef/undef
My family and friends are biased against pre-owned electronics devices and they tried to convince me real hard to get a new one.
I didn't want to pay that much money for a new one especially when I can't even test it for free software compatibility before buying. In the case of this pre-owned one, seller allowed me to test with #Trisquel and any other distro of my choice. They even helped me to disable the secure boot as I was unable to find the settings.