I have a Samsung 82Q90 in my very bright Living room with a 9.2 Atmos sound and a 120" FP in a 12' x 13' HT with 13 channels sound. The LR is a multi-purpose room and the brightness of the Q90 and it's HDR is fantastic. On the other hand, My HT is a batcave to get as much performance as possible from the FP format. It's a single-purpose room. Any light at all washes out the picture. The immersion of the 120" screen at 9' viewing distance compensates for the lack of HDR, but the room is not suitable for anything else. If I were to try doing anything else in the room other than watching movies, the extra size would make no difference. Other than size, I really prefer the 82Q90, and if I were watching sports with my buddies, there is no contest which I would prefer.
JVC RS600 Chad-callibrated, 120" 1.3g in Batcave HT, Denon X8500 Polk LSiM703 fronts,
RTi-12 rears, LSiM 706 center, Monitor 40 Heights, Monitor 60 FW, FXiA4 Bi-pole sides,
LSiC CH, Infinity 6" VOG. 4X 12" subs w/mini DSP on sub 1 and nearfield 18" from sub 2.