alt Hacker NewsI've seen 1000W (or so they claim) 10 port USB-C chargers on Amazon. Not Anker, just a no name Chinese brand I am not going to trust. But they do seem to exist. Like the sibling comment says, I assume it's because people expect USB-C charging capabilities to be a lot higher.
Do you believe the 16 TB uSD cards from no name Chinese brands on Amazon as well? If so, I have a bridge to sell - limited time offer!
500W (with 1 port being true 240 W) is the highest legitimate one I've run across - and I search often for real alternatives to buy. Even bulky GaN PC PSUs selling for $500 can't exceed 700W without assisted cooling due to efficiency->heat reasons.