You can't get more than 1800w out of a modern 120v @ 15A outlet so people would need to start running a line from their breaker straight to their PC and ONLY for the PC and plug their monitor and speakers and desk light etc into a different plug connected to a different breaker, and any more than that and everyone would also need to run brand new thicker gauge wiring to their panel or everyone would have to just run it on 240v 3-phase and then get an inverter.
This is why the huge double-sized bitcoin mining PSU that LTT made a video on the other day, needed to be plugged into their 240v outlet.
Either this is a rumour and the person who made it up doesn't know enough about electrical to make it believable, or Intel actually plans to do this and they're absolute retards who don't care about 2/3rds of the world who are using 110/120v. Honestly at this point I can't even decide which is more likely.