but I need to stretch my legs and rest a bit after driving 180ish miles. so stopping every 3 hours is still roughly in line with typical driving practices
I enjoy the five minute stop to get gas every 300 miles or so in my own car on road trips. I do NOT enjoy a 30 minute stop every 200 miles... That's called a "breakdown".
That's the kind of thing that turns a 10 hour one-day drive into a 17 hour mandatory two-day trip.
It's not like that is so uncommon either, lots of families I know only really stop for lunch, otherwise they are driving very long distances per day with short refueling stops.
Something else no-one seems to consider is the vastly larger number of "refueling" stations required if most cars are electric, each car has to stop for 10x longer, at shorter intervals...