Buy the Marsail Ergonomic Office Chair.

It is the chair built to survive your actual workday, not just your first month.

What was compared

Marsail Ergonomic Office Chair: Office Desk Chair with High Back Mesh and Adjustable Lumba... — $151.99
GTPLAYER Gaming Chair, Computer Chair with Footrest and Lumbar Support, Height Adjustable ... — $85.21

1. Real adjustable lumbar, not a stuffed pad
Marsail's lumbar support slides 1.18 inch forward and back and 2.16 inch up and down to match your exact spine curve. GTPLAYER relies on a fixed lumbar pillow that can't be fine-tuned, so it fits some backs and misses others completely.
2. GTPLAYER's frame doesn't survive daily use
Owner reports describe the GTPLAYER chair breaking or slipping down within just months of normal use. Marsail's steel frame is solid enough that the maker backs it with a 12-year warranty, a bet cheap gas cylinders and bonded leather can't match.
3. Mesh breathes, PU leather doesn't
Marsail's mesh backrest lets air through so your back stays cool across an 8-hour workday. GTPLAYER's PU leather traps heat and, like all bonded leather, will crack and peel with daily use, something mesh simply never does.
4. More ways to actually fit the chair to you
Marsail gives you a 2D headrest, 90 to 120 degree recline, and 3D armrests that slide and swivel independently. GTPLAYER's headrest and armrests are far more fixed, so you end up adjusting yourself to the chair instead of the other way around.
5. Yes it's cheaper. That's the whole appeal.
GTPLAYER undercuts Marsail by around seventy dollars and throws in a footrest, but reports of it breaking within months erase that saving fast. A footrest is nice for gaming breaks, not a reason to gamble on support that fails early. Buy the chair built for the workday, not the one built for a stream thumbnail.