When the project evolved to having a 3rd screen, I nicknamed it "The Great Equalizer", because that's exactly what it is - it has such great workflow that people with low vision can compete on an equal footing with those who aren't visually handicapped and don't have a "Great Equalizer."
Important
For the various ways you can configure the screen upscaling and displayed text size independently for optimal readability, see the Operating System page. With a center screen, and additional screens on both sides, there's plenty of room to work, as well as to store windows on both side screens until needed.
Three screens will require at least one independent video card.
Intel's A770 series video cards are no slouches, and a lot cheaper than the competition.
While Intel Arc A750 ($330*) and A770 LE ($469*) models both come with 1 HDMI port and 3 DisplayPort ports, the price difference between the models makes it easy to opt for the Arc 770 Limited Editiion, which has 16 gb of RAM and is a faster card overall.
Great value when you consider that other 4-port video cards cost hundreds or thousands of dollars more, and either come with less video memory, or are priced as if crypo-mining is still a thing.
Throw in a webcam, scanner, and printer, and you also have a great setup for Work From Home.
It also works for watching the trashy TV channels that Smart TV manufacturers include for free with their TVs, as well as regular TV. Think election night coverage with 3 screens ...
(* All prices are in Canadian dollars.)