I'll start with a question: Does the RV just need light cleaning and some shiny protection, or is there oxidation or "black streaks" to remove? If the former, you can use any of several excellent "wax" products, but the latter requires an abrasive polish and elbow grease (human or machine).
In this day & age, there is no need for labor intensive rubbing unless there is oxidation or deep-stain dirt to remove. Synthetic "wax" products like Protect-All or Turtle Ice are essentially wipe-on, wipe-off, and remove surface grime and leave a nice shine that is good for several months. If the surface is slightly dull, you can use a light duty polish-wax such as Nu-Finish or one of the many Meguiar's products. Those require some rubbing effort but nothing too terrible. It's not until you need to remove oxidized surface or faded paint that you need a heavy duty polish and lots of rubbing. Or maybe even a "rubbing compound" followed by a separate wax for protection & shine. There is no benefit in using a heavy duty product unless really needed.
An actual paste wax, e.g. carnauba, involves a lot of effort to rub on and buff off, but it is the longest lasting (a year) and most resistant to nasty environments (salt-water, acid rain, etc). However, most popular products labeled with the word "carnauba" are liquids or creams that contain only enough dissolved carnauba wax to make the claim legal. You are kidding yourself if you think there is any additional benefit there. Ditto for buzz words like "ceramic".
If your RV has full-body paint or is clear-coated fiberglass or metal, waxing/polishing is really no different than what you would do for your painted & clear-coated car. Any good automotive product should work fine. However there is still the consideration of light cleaning vs medium or heavy duty polishing. Many, perhaps most, RVs are at least clear-coated these days.
