I skimmed through the list. It is a couple of brands, none of it is recent hardware. Talos II (super expensive IBM Power workstation), TPE (not to be confused with TP-Link) networking stuff (old standards, like 1 gbit, 802.11n), some rebranded IBM/Lenovo X200, some old USB peripherals. There's nothing worthwhile on this list. No monitors or TVs (the topic at hand!). No keyboards (even though there is FOSS firmware for keyboards), except for I suppose X200. Not even Stallman's old MIPS laptop (Lemote Yeeloong) is on the list.

Linking this list is like saying you can live in a world without war in some remote cave where you have to eat mushrooms growing in it. Cool that exists (or not); but it isn't relevant. There's nothing worthwhile in the cave. No treasure trove.