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You vs the Guy She Tells You Not to Worry About
(i.imgur.com)
Banana for scale but, also, the desk is 6' long and the little monitor is 43" (and will be re-purposed elsewhere).
I remember when a friend got a plasma TV and connected to their computer for some Battlefield 2. He had to stop playing that way because he got motion sick from having an image the size of a wall whipping his view around. Good luck!
For TV viewing, you want between a 20-40 degree viewing angle. I'm sure the recommendation is quite a bit larger for computer use. It's quite a large range, but any way you cut it sitting in front of a TV is not it.
A 43” is basically a 2*2 grid of 21.5” 1080p displays without bezels. It’s not particularly wide, two average 22-23” 1080p monitors and it’s taking up much more space horizontally. With a deep enough desk, the added verticality isn’t particularly bad either.
However that… thing (?) is another case entirely
It's a 2x2 grid of 37" 4K monitors, or a 4x4 grid of 18.5" 1080p displays. It would be more productive if the desk were 3-4" further away and the monitor were 4" below the desk instead of 1.5" above it, as the top 10" or so is impractical to use while sitting except as a status area. OTOH, I welded up the custom mount to my lifting desk, so I can stand and raise the desk so that the keyboard is on the actual desk instead of the tray. In that configuration it maximizes my usability of the screen.
A plasma would be like sitting in front of a heat lamp. My old plasma make me have to put a booster fan on the duct to that room. I do have to be careful when zooming and panning; the family was scoping out Aberdeen, Scotland last night via Google Earth and I had to be a good bit slower on the controls.