Really only true if you _only_ care about gaming.
If you're split at all, single core perf on AMD these days is real close, and multicore Intel is just getting trashed (especially in any kind of price-per-perf metrics).
Everybody is always looking at performance per dollar. I'm more interested in performance per Watt. All that power generates heat which needs to be blown out of the system, which creates noise. I like my machine silent.
You'll be happy to learn that AMD is beating Intel in perf-per-watt as well these days. Certainly when it comes to the high-end, but Zen2 is doing well in laptop tests as well.
That's good to know. I got my son a Ryzen Thinkpad for school. When I bought my own almost a year ago, I was sad that Thinkpads didn't come with Ryzens yet.
Me too, but the heat (energy) is probably the more important discriminator. Data center operators very much care about how much is created (wasted) as they have to pay for it twice.
Desktop users might in addition care about heat (-> noise) being created in low load / near idle situations where those machines spend most of their time in.
I also care about heat and noise under load. I hate it when all the fans kick in.
Gamers never cared about the number of cores. Only recently has this slowly started to change. Intel is still king if you primarily care about gaming.