I have different seat cushions and support seats and change positions constantly... I'd see even if you got a chair that wasn't so expensive but get several different types of support cushions.
KÓ§lbs Extra Large Seat Cushion | Stylish Plush Velvet Cover | X-Large Memory Foam Seat Cushion for Office Chair, Car or Wheelchair | Office Chair Cushion Back Pain Coccyx Pain Relief | Carry Handle https://www.amazon.com/dp/B08SSKRT9M/ref=cm_sw_r_apan_glt_i_FBBEH0D5XKNTRJR8Y7JJ
Car Booster Seat Cushion Heightening Height Boost Mat, Breathable Mesh Portable Car Seat Pad Angle Lift Seat for Car, Office,Home (Blue) https://www.amazon.com/dp/B098PST98W/ref=cm_sw_r_apan_glt_i_P9MCYS1DGA11Z1GGNHN8?_encoding=UTF8&psc=1
Kanglesdip Gel Seat Cushion - Non-Slip Orthopedic Gel & Coccyx Cushion for Tailbone Pain - Office Chair Wheelchair Car Seat Cushion - Sciatica & Back Pain Relief (Blue) https://www.amazon.com/dp/B0979H2MR8/ref=cm_sw_r_apan_glt_i_K7PGTGW33HBA5BYYVTBK