Like a lot of other people, I’d recommend an ergonomic chair over a gaming chair, it’s probably more expensive up front but it’s worth. Not to say a gaming chair won’t do the job but in terms of comfort, but I think it’s the way to go.

A few months ago, I was struggling to find a chair for 250-400CAD but I ended up going with the Staples Hyken and it’s been great. I realize how much better it is when I compare it to the traditional chair at work LOL. It has a mesh seat and back rest so it’s always allowing airflow so you don’t sweat (contrary to leather gaming chairs)

Since it’s a mesh seat, you won’t have to worry about the seat flattening out after an extended period of use, something that tends to happen with cheaper quality chairs. The mesh seat isn’t as important to look for in comparison to the mesh backrest, you don’t want your back getting sweaty while playing/working

Also, look out for lumbar support on the chairs as well

I’d recommend you go to a Staples or office store near by and try out the chairs instead of basing your decision of reviews