I wonder if intel is considering something similar (ie large amount of cache) to amd's vcache. That seems to be the logical direction to head towards to rather than trying to win clock wars which has increasing diminishing returns - more power used/heat for less gains, at least in the context of gaming. They don't have to do it for their entire line-up but it could be their "gaming processor" line, just like how X3D is known for gaming.
Besides the power issues, one reason intel is losing to amd is because it is rapidly losing mindshare when it comes to the gaming segment. Basically nearly everyone on the net now is .... "if you want to game, get a x3d cpu". That's free marketing in and of itself. It's not the largest segment but gaming is one of the more prominent ones that gets headlines. Similar to how nvidia maintains mindshare through its halo product (the titans/xx90s) even if they are expensive as hell.
I know intel's chip has higher potential than x3d but it requires a hefty amount of tuning and binning (some even boast about buying and returning dozens of CPUs) along with more expensive ram while x3d is basically plug and play with ddr5 6000. Most people go for what the most convenient is. Being able to use air cooler with x3d is a bonus as well
PS: Intel did try it in the past with its short-lived broadwell processors.