I just did an NYC to Cleveland trip in my Bolt EUV, along a route with only a few DC charging locations, and never once had to wait for an available charger -- even on Memorial Day.
That said, if you need to use the heater, then yeah it's not viable for a road trip. No heat pump, so major battery drain.
The other key to a Bolt road trip is to avoid speeding too much. There's an absolutely tremendous difference in range when going 65 mph vs 80 mph.
As a Nissan Leaf owner, yes. Because of CHADeMO (that is going to be a big problem in a few years, as existing stations fail and don't get replaced) and because of the passively cooled battery pack. I can do one DC fast charging no problem without much change in battery temps (CA weather). 2 or 3 in the same day? Might get toasty.
That said, all EVs have issues during winter(Tesla included, their EPA ranges are way overstated). It's just that, for a Tesla, it's easier to find a supercharger.
The consumption difference due to speed affects all cars, no matter their drivetrain. For ICE, that burns a hole in your pocket as it causes you to stop at gas stations more often.
re: speed and consumption, for sure. But because the Bolt's DC fast charging rate maxes out at a fairly lame 50-55 kW, and speeding => reduced range => more charging time required, so on a long Bolt road trip there's diminishing returns from speeding a ton. I suppose it depends a lot on terrain and climate though, since e.g. speeding can be more beneficial if it means you're running the heater for less time.
The 50 minutes in the Tesla is the same time for a bathroom and quick food stop. The additional hour and a half in the Bolt is pure time wasted.
Add even more time if you drive faster than 65.