Stupid rumors will always be stupid. If it's a QS/ES running R20, show me a screenshot of it running R20.
That said, for once, I am a little worried about the power draw. 200W+ was never an issue for CML because of thicker IHS/die thinning/just a very good thermal design. 5GHz all-core on a midrange U12S isn't far fetched at all. RKL took a step backwards in a number of ways, so it ran like an inferno.
But Alder Lake is on 10ESF, and will mark the first time that Intel experiences N7FF-esque thermal/power density on the desktop.
Under an air cooler and at stock power limits, a 7nm 5900X/5950X runs hottest with high single core (actually 2-core) boost where it scales to 4.9-5.0GHz @ 1.4V+ and 15-20W power per-core - not during MT. However, once you get to about 180-200W power draw, MT temps begin to overtake ST temps as the freq, volts and power per-core comes up.
So more than anything, it's still the thermal density as Zen 3 cores only begin spiking/acting erratically on temps when power per-core exceeds about 13W. Same deal with the 5800X, only reason the 5900X/5950X avoid that fate is by keeping per-core power down in MT (below 10W at stock), whereas 5800X is somewhere around 14W per core, above the 13W threshold.
Will be interesting to see how Intel tackles this problem, since most of the power should be going to the Golden Cove cores, of which there are only 8 to share the power budget. Being monolithic is a boon, but it changes little at 7nm/ESF density.