The TCL S535 is a good overall TV. With a VA panel, it has an exceptional contrast ratio that displays deep blacks, making it a great choice for watching movies. Despite not having many extra gaming features like VRR support, it's a great gaming TV because it has an incredibly low input lag and a quick response time. Unfortunately, it isn't the best for watching shows or sports with a large group of people because it has narrow viewing angles. Lastly, it displays a wide color gamut for HDR content but doesn't get bright enough in HDR to bring out highlights.
Closest I got with my (reference) OLED laptop is Gamma at 2 or 3 and Color at 63 and Auto for Color Space. You need to set your values while watching HDR content.