Well, short answer is, "no." Reading between the one line of your posting, I suspect you are a newbie to the EV road tripping world. Look, I just did a +2,900 mile run from Cape Cod to southern AZ. Every Supercharger site I went to worked just fine. You are overthinking your long trip.
Please share where the trip is leaving from and going to and I'll give you some specific guidance if I can.
Rich
Edit: I see you'll be starting from San Diego, so got that now (sis lives in El Cajon. Been to San Diego via Tesla from south of Tucson. Piece of cake.)