There are a few ratings that people should consider when towing an RV. Start with the tow rating, which can be determined based on the what John and Angela listed. Engine, axle ratio, cab/bed sizes, 2WD/4WD and if you have the factory heavy duty towing package. If you need help finding any of that, GM provides a list of all the equipment as built on a sticker in the glove box. It is call the regular production options list or RPO. There are lots of decoders on the Internet to help with that.
Tow ratings are typically specified with only one driver and for a relatively easy type of trailer to tow, a boat or open bed trailer. RVs are probably the most difficult type to tow being high profile boxes of air.
Another common limitation for half ton RVing is receiver limit. Your should have a sticker that lists two ratings, similar to this on mine. So I cannot exceed 1000 pounds using a WDH which means about an 8000 pound loaded TT, and 7k dry.
One common limit with late model half ton pickups is payload. RVers tend to load up the truck with family and the bed full of recreation and camping gear. So if your family weighs 500 pounds and you plan to put another 200 pounds in the truck bed, you need to make sure the loaded tongue weight plus family and cargo is less than your available payload. Take a look on your driver's door for this sticker which lists how much your truck has for payload with the specific equipment/options it has. Note what it has where mine says 2051.
A & A parents of DD 2005, DS1 2007, DS2 2009
2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS
2017 Subaru Outback 3.6R
2x 2023 Chevrolet Bolt EUV (Gray and Black Twins)