I have two herniated discs that hurt like hell for a couple years now, so a few months pre pandemic. I got exactly 3 different chairs in my home office now, as I tried several models until I finally succumbed to the gaming chair.

I bought a DX Racer Drift looking for the foot rests, but I rarely use those.

The big, big difference I saw in gaming chairs over most of the desk chairs is the ability to recline the backrest independently from the seat. While most office chairs will allow you to recline, the seat is fixed into the backrest so the angle between your legs and your back is always fixed at 90 degrees. Being able to tilt just the backrest, making a >90 angle between my legs and the back is the super-dupper-killer-feature for me.

I usually leave it slightly over 90, not too much, maybe something like 110 degrees, which gives me max confort without hurting my shoulders (which start to hurt if you go too far back, as you lose some support while typing).

What I found in the end is that all this ergonomics bs is just that: BS. Find a chair that works for you, it does not even need to be expensive. For a long time I was using my kitchen chairs because they were less painful then my previous two other office chairs.