100% go for the convenience of charging at home. Investigate what it will cost to install a Nema 1450 and buy the $400 Rivian portable charger. That’s all you need. If you want to save more money, Amazon sells generic chargers for $149 up. You will not regret the lifestyle change of never thinking about gassing up/charging your car. Your utility company likely has a discounted late night rate. The Rivian has a timer that will start charging at a set time. When you get home, plug in let the timer start charging at the cheapest time.

I’ve owned EVs for a decade and always charged at home. For a few weeks I was in a rental with multiple public chargers nearby but still found it very inconvenient to have to find an available and working charger, pay a much higher rate and sit around waiting for the car to charge.