I’ve had a lot of monitors, including 27” and 32”. 32” is very teetering on being too big on a desk, as you’ll have to move your head around a lot to see everything.
I’m at 27” now, and it seems like the best size for sitting at a computer desk and playing a game with mouse and keyboard.
However, if you always play with a controller, and sit back in your chair for pc gaming, I’d say the 32” is the better option.
Edit: somehow missed that you said you aren’t a gamer. Given that, go with 27”. I have two 30” at work, and they’re almost too big.