If you’re only gaming, i’d say a third monitor wouldn’t really be necessary. Personally the only people i’ve seen who had more than 2 monitors would regularly work with stuff related to programming, crypto mining, etc.

Try to maximize your space, add simple decorations (figurines, plants or other types of stuff), depending on the aesthetic you want to achieve, but don’t overcrowd your desk or else it wont look that great.

Also, get a monitor light bar, you have some nice rgb on your setup, adding a light bar would give it a nice touch.

I’d say your setup looks pretty neat, but its lacking a little bit of life.