I do this frequently. A 15 minute stop for a biobreak and a takeaway coffee usually adds 100 miles or so on a modern EV and fast charger.

It's really not much (if any) inconvenience. If in a gas car you assume you are going to stop to take a piss and grab a drink or a snack or something anyway during the course of a long 300+ mile drive (very likely I'd say, unless you and your passengers are urinating into bottles), you'd still need to stop for gas at some point too when with an EV you are actually spending less time since it's "filling up" while you are in the line waiting for your skinny latte. You don't have to do all that then also stop to grab gas too, because your car filled up without you.