My current gaming chair is a green plastic garden one ... and it's doing my back in horridly and I loathe it.
I've been looking at office chairs, but all the ones that seem to be recommended (steelcase/herman miller/humanscale) are too pricey even refurbished (if you can even find one) ... ikea has a couple that are supposedly alright but there's not one near me to try it out, and all of these things are sold out now anyway with people working from home...
So yeah, I'll enter this as a longshot and pray despite the bad rep gamer chairs get as it'd be a definite upgrade, haha... not that I'll win it but, nothing ventured nothing gained.
(and, if I'm honest ... I actually think it looks kinda cool in that doom style, but I'll never admit it elsewhere, haha ... )