Two items:
1. I know the precise range of my Lucid, When I reach my destination in Rockford, IL I need to charge to 90 percent to get home with 20 percent left. On Christmas the weather was so adverse I still had to stop for a second charge 3/4 of the way home. At that charger I only charged to 53 percent and the darn 350 charger still throttled me to 50-70 kw. At least it worked.
2. One solution that EA (and most of us overlook) is that if EA delivered the output (charging speed) it advertises on its chargers, two to three times more cars could charge at a single charger during a fixed period of time. If my Lucid (and a few other 700-900 volt brands) could actually charge at 150 or, better yet, 350, they'd be there and gone in 10-20 minutes, not 40-50 minutes, since EA throttles them to 50-100. I don't begrudge a Bolt for being at the 350 charger if that's the only one available when it pulled in. Anyway, when I use the same charger after the Bolt pulls out, I don't charge much faster in my Lucid Touring than the Bolt did.
At some point the government must step in to regulate what charging companies promise. States test the purity and octane of gasoline, so when you pay for premium, you get the promised 93 octane. They also test the accuracy of the pump, so when you pay for one gallon you receive precisely one gallon. What can't this be applied to EV chargers? It is not rocket science.
Finally, when my free charging expires, I have no objection to paying for guaranteed speed. If I want 350kw then I would pay 10 percent more than 150, or whatever the standards become down the road. . .