Go further, stay out longer

Camping with no hookups: no water, no electric, no sewer, usually no neighbors. Most often it means dispersed camping on public land, though the word gets stretched to cover any night spent self-contained. The skills are not exotic. It is arithmetic about water and power, plus knowing where you are legally allowed to be.

Water, not power. Solar and a decent battery bank quietly solve electricity for most people, and then they discover that fresh water and tank capacity are the real limit. A careful person uses roughly three gallons a day for drinking, cooking, dishes, and a short shower. Do that arithmetic against your tank and you have your trip length before you leave.

Work in layers. Start with land ownership, so you know whose dirt it is. Then check which roads you are allowed to drive, which on national forest land means the motor vehicle use map. Then look for ground that has obviously been camped on before, because using an existing site is usually required and is always better practice than making a new one. Only then worry about the view.

Generally, with ordinary caution, and the realistic risks are not the ones people worry about. They are environmental and logistical: no water, no signal, a road that turns to clay when it rains, and a long way from help if something breaks. Tell someone where you are going, carry more water than you think you need, and be honest about whether your vehicle can get back out of where you just drove it in.

No. A car with a sleeping platform and jugs of water boondocks fine, and a small vehicle gets down roads a Class A cannot approach. Bigger rigs buy you capacity and comfort and cost you access. The most limiting thing is usually not the vehicle, it is how much water you can carry and how honest you are about the road ahead.