Having had the Windows 11 issue locally, and using the patch the day it was released, I can tell you that in 99% of workloads, it was more like 3-4%. In a few select workloads, it may reach 10%, and in the 2-3 workloads widely publicized, the gap was greater.
No, they are showing progress. Nothing deceiving about it.
A lot of people are losing their minds over the power. GC has higher IPC than Zen 3. That is pretty much a known fact (unless you think they regressed from Rocket Lake. We also know that Intel has set power limits through the roof to allow the highest end chips to compete with the multicore workloads 5900/5950x. We know little else beyond leaked benchmarks. I've no doubt the chip will pull tons of power (if allowed) for multicore workloads. I also have no doubt that Alder Lake is Intel's most efficient chip yet. That is basically all we know right now. Wait for the reviews.