75" TCL Q6C vs 65" TCL C7L at 8.5 ft viewing distance — which would you choose?

I’m planning to buy a TV for my room, and my viewing distance is around 8.5 feet.

Initially, I was going to get the 65" TCL Q6C, but since I’m sitting around 8.5 ft away, I started considering the 75" Q6C for the extra screen size and immersion.

However, after looking at reviews of the newer TCL C7L, it seems to have significantly upgraded technology, including more local dimming zones, much higher brightness, and better overall picture quality.

So now I’m stuck between:

• 75" TCL Q6C — bigger screen and more immersive at 8.5 ft
• 65" TCL C7L — newer technology, better brightness, more dimming zones, and seemingly better picture quality

My main uses will be movies and PC gaming, and I’ll be wall-mounting the TV.

Which one would you choose at an 8.5 ft viewing distance, and why?

Would you prioritize the larger 75" screen or the better picture quality/technology of the 65" C7L?

Also, if anyone has experience with either TV, I’d really appreciate your thoughts on HDR performance, blooming, gaming, and overall picture quality.