Well, people have different preferences. I sit about an arm's length away from my 27" display (with the 24" secondary a bit further away to the side of the main one) on a 160x80cm desk (that's ... 63x31.5" for those operating in Freedom Units), but the main is also mounted on an arm for easy positioning (I've bought a dual arm for more flexibility, but haven't gotten around to mounting it yet). At this distance, I can easily see the entirety of the 27" display without moving my head, though the extreme corners strain my eyes a tiny bit if I don't shift my head. This is comfortable for me for both work and gaming, though I tend to move around and sit differently for both. The entirety of the 24" (mounted vertically) is visible in my peripheral vision when I'm looking dead centre at the 27". Seeing how a 32" is ~10cm wider than a 27" that would definitely make a difference, and I'd likely need to shove it back a bit (plenty of room for that thanks to the arm), but I would probably enjoy it more for gaming.
I would love a 3:2 monitor for work, but not for gaming. Sadly I need the same thing to do both, so ... meh. At 27" or above 16:9 is sufficiently tall for it to not matter, but going smaller than that for work would be unacceptable. It fits nearly three full-sized A4 pages side by side, so that's plenty really - the secondary is for managing all the damn windows I need for work, keeping reference material up for glancing at, plus screen capture and that kind of stuff. Having two separate monitors is a benefit in that regard, as stuffing all of that onto a single one would be a mess.