> For example, cables often state that they can handle up to 240W ... but no 240W USB-PD chip has ever gone into production -- you won't even find one at the hottest USB-PD trade shows[0] in China.

Your information is out of date. You can buy 240W chargers from Framework which I assume are just rebranded Delta chargers:

https://frame.work/products/power-adapter-240w

The Framework 16 supports this 240W charging input, as well.