So a 2080Ti is now not a 4K card then ? Last gens top dog .. the 3070 has same gpu grunt as a 2080Ti and better RT on the 3070. The 3070 is a very good 4K able card and remember games are tested maxed out on his reviews, so can be turned down a little to get the frame rates you want and even maxed out the games are doing really well on frame rates.
Check the video:-
3070 vs 2080Ti (3070 stock FE and the 2080Ti is an OC model as he didn't have a 2080Ti FE, so the 2080Ti results should be a little lower really if using a FE 2080Ti to keep it fair)
At the time, it was. Things have moved on, it's just the way the tech and gaming sector progresses so therefore it is no longer a 4k card, at least not if you want the everything maxed out as much as possible and have 60+ fps.....
The same way a 3080/3090/6800xt/6900xt won't be a 4k card in 1-2 years either (if expecting max settings @ 60 fps)