It's all about the correct posture and one of the best types of chair for this is a gaming chair (even if not just for gaming) as they are designed for this specific purpose in mind. But to utilise them correctly it is good to know how best to set the reclining angle, height, and cushions.
You usually won't find this in the chair's manual but you can read this guide at https://chairsfx.com/computing-chair-advice/gaming-chair-user-guide/
#gamingchair Gaming chair user guide for ALL Gaming Chair Models | ChairsFX
This all-brand user guide teaches how to set up your gaming chair, how to sit in one and how to use the reclining options to best support good posture.