I don't own a Tesla, but the short answer is that they accept higher rates of charge than Bolts or Leafs. The real answer is complicated, involving the Tesla Supercharger build-out, and the use of DC "fast charging" for Bolts if you're willing to pay for it. No one disputes the quality of Tesla engineering design, although I've heard many "build" complaints. I wanted a car with smaller dimensions, and I don't trust Elon to run a company.
You are, indirectly, asking about EV "road trips" rather than EV near-home usage. I'm retired, drive less than 50 miles a day, and have a two-car home garage where I can charge overnight to full. My wife has a gasoline car (ICE) for long trips. I don't argue that an EV fits everyone's needs. And like many EV owners, I don't claim to be a whale-hugger.
On topic, I have rented a car for maybe 15% of 50 trips to Europe. I would not rent an EV in Europe if the agency offered me one. My opinion is that the OP should be worrying about getting the size and transmission car he reserved, using unattended gasoline stations, and avoiding phony damaged-return charges - as well as local insurance and road-usage rules.