Yep.
High backed plush executive chair.
Now peeled, hard from long use, and on it's second gas lift. Probably about to drop dead at any moment. Not replaceable either, as I think the company that made them vanished. It's something like 15 years old now. Absolutely perfect for me, and it took me sitting in 50 chairs to choose it.
I've replaced it twice now.
First one turned out to be too hard everywhere, and even with a cushion on it, the back just wasn't right. I went back to the old one.
Just replaced it with a new one I found by accident. $999 marked down to $189 high back executive in fabric. Not in any way worth $999, but with the same cushion I;ve been using for several years now, seems to be doing the job for now.
The thing is, when your back is an issue, you have to forget about money, forget about ergonomics, and find the chair that is right simply by sitting in all of them until you find it.
For me, it has to be high backed executive. No other shape will do. And it can't be fake leather or even real leather, given how humid it gets here in summer. Narrows the options a lot.
This is the new one, but it's not quite that grand for real.