Alright, but 4K isn't a minority? DLSS/RTRT games aren't a minority in contrast to the amount of games w/o those features!? People that can just burn $500's for best case 17% more performance and overlook heat, noise, and power usage aren't minorities!? Who are you really Tom Cruise!?
Yes, 4K is a minority. But my guess is 1440p high refresh rate is a minority within a minority, and might be considerably smaller than the 4K minority.
Personally I'm perfectly happy at around 90 FPS, and apparently I'm a minority, as most people seem to be happy even at 60 FPS or less. Of course, this depends on the game and the play style, these numbers are not set in stone. And of course there are minorities for which even 90 FPS is not enough.
Now, if I take my 90 FPS as the target, which as I said I consider to be quite high, and we look at the average FPS charts, we see that even the 6800XT and 3080 give you over 90 FPS at 4K on average. So for me to benefit from the 6900 XT or 3090 I would need to play at a resolution higher than 4K at 90Hz.
If we go to 1440p, even a RTX 2070 Super or a Radeon VII is enough to give you over 90 FPS, on average. That's why the performance of the 3090 and 6900XT at 1440p doesn't seem very important to me. I believe the percentage of people that want over 150 FPS on average at 1440p is extremely small, even compared to the 4K minority.