they're pretty much the same thing. the "gaming" chairs which are just racing-style chairs just have different lumbar supports. find something that's comfortable for you, make sure it's ergonomic and has lumbar support. you can find herman miller aerons on craiglist sometimes for cheap (around $200-300) from offices that shut down and need to liquidate, otherwise something like this is comfortable to sit in for 8+ hours a day (choose a chair based on your size/weight accordingly)
Secret lab is awesome. I barely consider it a gaming chair. It’s way better than stuff like DX that is crap and falls apart. I’ve had mine for years and it’s been the best for my back than any other chair I’ve owned.
This guy is pretty comfy and has multiple tilt lock positions, which is nice. Looks exactly the same as the one TheContact posted, but I'm not sure if that one has the multi-tilt that you find in most gaming chairs.