Look at what AMD did to Intel, sure Alderlake is very competitive with current Zen 3 on the desktop. But that is where it ends.
I kid you not AMD are about 3 if not 4 generations ahead of Intel in Datacentre, Intel's latest and greatest cannot get anywhere near Zen 3 EPYC CPU's in raw performance or performance per watt, AMD have just launched Zen 4 96 core 128 thread Genoa and are about to launch 128 Zen 4 core 256 thread Bergamo.
Q2 2022 Intel had $4.6 Billion in sales for Datacentre, from that they earned $200 Million (4%)
AMD only earned $1.5 Billion in sales, but earned $480 Million (32%) profit.
Intel market share and revenue from Datacentre is continuously falling, AMD's is continuously growing and there is nothing Intel can do to stop it, the big money bags are gone, even if Intel sold their Xeon's for below cost (which they can't afford to do) it wouldn't stop AMD's slow but relentless eating of Intel's lunch, they are like a parasite eating Intel alive, slowly.
Even in OEM's, Laptops Zen 3 is more performant for less power than Alderlake, Zen 4 will take that to another level, In Laptops AMD market share is also growing, slowly but relentlessly.
Who would have thought that about Intel vs AMD 5 years ago?
Nvidia are quite different, they are no where near as incompetent as Intel, but AMD are also starting from a very low base, they may not gain much on Nvidia over the next couple of years but like Intel Nvidia are also dependant on their high market share and high margins, 5 percentage points is quite a big help to AMD's finatials, its quite a big loss to Nvidia's.