KINSAL!
This is the exact chair that I have. I got it for $99 on a flash sale, but it's every bit as good as a high-end gaming chair. I love this thing to death, although I took the lumbar and head cushions off of it. Best purchase ever.
I don't spend more than a few hours in it at a time, so I can't speak on how long sessions would feel or working from home. But I love it for what I use it for.
I KNOW you said not DXRacers, but I use mine 8+ hours per day for work and have zero back problems. I searched Amazon for a long time looking at chairs. It is hard to determine the quality online. I was almost going to buy the Kinsal Ergonomic Leather High-back Swivel Chair but there were a good amount of negative reviews.
https://www.amazon.com/gp/product/B01AW9XDVG/ref=oh_aui_detailpage_o07_s00?ie=UTF8&th=1 I have this one
I am a big fan of it, especially at that cost.
Amazon Link I love it, it's held up well for over a year now.
Here is his [domain.](/angery)
Amazons whole deal is 2 day shipping and it took me about 5 seconds to find a chair on sale and available for delivery on the 1st https://www.amazon.com/dp/B01AW9XDVG/ref=cm_sw_r_cp_api_DPGlzbVADX9B1