I have one of those cars (Kia EV6), and when at a 350kW charger, I've never seen it go over 180kW. As for every 2 hours, that's only true once there are more fast chargers, especially on long stretches of freeway between major cities. I did a drive from Houston to San Diego, and we had to stop every 60-90 minutes, not because we needed it, but because the fastest charging locations (Electrify America) weren't close enough to skip any. Also, freeway range is far less than city range, due to wind resistance.

Stopping for 20 minutes every two hours is collossally ridiculously stupendously untennable overhead.

You have to think in terms of fillups per hour or per minute that a standard gas station can process. If every one of those 1, 2, 5 minute fillups now takes 30 minutes to several hours, that translates into gas stations having to be parking lots and parking garages that can hold hundreds of cars, and a doubling or tripling in travel expenses and travel time. A million trips now need whole extra days and associated hotel stays and meals and generate a million extra junk boredom purchases at rest stops just because what else are you going do while waiting around for the charger?

Anf this is all in the mythical world where high speed charging stations actually exist in all the places where gas stations currently exist, and all actually work at full speed, and your car is allowed to use any of them. That world is not even close to existing, and doesn't do the job even if it did.

That assumes a 150kw+ charger, which aren't super common. I did a trip from Houston to San Diego in my Kia EV6, and those chargers (I believe Electrify America is the only one with those speeds) were roughly every 60-100 miles. Many areas you can't even find one close enough to not run out on the freeway (for instance, anywhere in Texas south of San Antonio). Slower level 3 chargers will typically take 3x as long, and the level 2 chargers that are common will typically take 5-8 hours.