I am looking to replace my old office chair and would appreciate advice or recommendations.
Personally there’s two key factors I look for: mesh seating and a back that reclines independently of the seat.
For the former, I get overheated on leather or cloth. Being suspended on mesh helps regulate temperature during an 8 hour workday.
For the latter, I once had an office chair that the seat tilted when the back was reclined. It dug into my under-knees and made my feet go numb.
I picked up a mesh chair at Office Max 10+ years ago and have been using it for 8+ hours a day since then. Zero issues or back pain.