It's the same few with every AMD Sponsored title/thread, that's why I have some people on ignore because the whole discussion gets side tracked with nonsense due to fanboyism.
I don't really understand what the big deal is. There's a few games where the 3080 has to turn down a few settings here and there or performance suffers due to lack of video memory.
Even 6900 XT and 3090 users have to turn settings down occasionally, just for different reasons. Life goes on and it's not the end of the world.
Anyway, here's the 6900 XT running at 4K true maximum settings, averaging 75 FPS and minimum of 60. It seems most videos on YouTube are not truly running max settings with FidelityFXCas On.
It runs very well indeed and there are no FPS drops down to single digits or texture issues that have been documented elsewhere on GPUs with less than 12GB of memory at 4K maximum settings.
Here is 1440P.
There's actually not many decent comparison videos out on YouTube yet, most people are turning certain settings off (Texture pack, Ray Tracing and or FidelityFXCas) but here is jokers 3080 TI running at what appears to be 4K maximum settings.
I will put up some actual gameplay next which should be a bit more demanding than the short benchmark sequence built in.