"HP EliteBook 2560p was released in 2011 and is now end of life. It can be bought from a secondhand market ...
The following [proprietary] blobs are required to operate the hardware ..."
https://doc.coreboot.org/mainboard/hp/2560p.html
Yes, it's a 15 year old laptop. But still perfectly usable for basic day-to-day computing with a GNU/Linux OS. Why are companies allowed to abandon devices like this, without releasing the source code required to provide full aftermarket support?