Please explain towing specifically for my truck, 2015 super cab eco boost, 6 speed auto, short wheel base. No tune. I only have a bumper hitch as installed by Ford. Max towing package hitch. Explain GVWR, hitch weight, torsion bar hitches, sway control hitches.

 

Google:

2015 Ford F150 towing guide

 

I would suggest reading the entire towing section of your manual, then come back with questions.

 

I'd agree with the comments above.
You can read your towing section which is written better than what we can.
Also, the type of hitch you have is not considered a bumper hitch. A bumper hitch is you going to AutoZone to purchase a ball, and inserting it into the hole in your bumper.
A person here recently asked about a bumper tow and he couldn't understand why we kept telling him what he wanted to do was not possible. We all though he meant he was going to hook up an 8,000lb RV to his bumper.

GVWR = Gross Vehicle Weight Rating
Hitch Weight = the amount of weight applied to your hitch when trailer is connected and supported by the truck.
Torsion Bars (when taken in context of weight distribution hitches) = a bar used to assist in equalizing weight between axles and the trailer.
Torsion Bars (when taken in context of suspension) = an option that replaced a coil spring usually only on front end suspension designs
Sway Control = A means to prevent the trailer from swaying and causing lose of control

In all seriousness -your owners manual answers most of your questions. When you read that information and have specific questions, please come back to clarify your thoughts.
You forgot about one very important thing though. "PAYLOAD". You should first understand what PAYLOAD is. You can read that in your manual or the other 2(hundred) threads here that address payload concerns. Payload will be a subset of GVWR.

Definition as repeated by Google:

tow1
/tō/
verb
gerund or present participle: towing

1. (of a motor vehicle or boat) pull (another vehicle or boat) along with a rope, chain, or tow bar.
   "a pickup van towing a trailer"
   Similar:
   pull
   
   draw
   
   drag
   
   haul
   
   tug
   
   trail
   
   lug
   
   heave
   
   trawl
   
   hoist
   
   transport
   
   yank
   • (of a person) pull (someone or something) along behind one.
     "she saw Frank towing Nicky along by the hand"

 

Thank you guys for your answers, will read my towing section. Probably be back with more questions. This question kind of arose from listening to one of my neighbors who pulls his travel trailer in his missionary work with his Dodge dually. My other neighbor with a 3/4 ton Doge pickup installed a fifth wheel hitch in his truck bed himself. The first neighbor with the Dually says the part from the travel trailer itself is different from the neighbor who owns the 3/4 ton truck. The neighbor with the 3/4 ton truck pulls a enclosed trailer like you can put a car in or just moving furniture and such. I think the neighbor with the Dually Dodge has a hitch that kind of shapes down to a pipe “steel” looking thing that attaches in his Dually bed. I know I may not be explaining well enough to y’all and I really do not understand the difference myself. I was just trying to understand their different hook-ups and if one was better than the other. Now, I will read my towing section on my own truck.

What really started me off was reading the post on here about people towing wrong. I don’t want to be in that group!

 

Go to Youtube look up fifth wheel towing, goose neck towing and conventional towing.
Watch a few videos you'll get it.

 

The way the salesman at the boat dealer explained it the other day to a first-time owner while he is hooking up a new 24-foot hardtop fishing boat.

Guy: There are different ball sizes?
Salesman: Yes, sir and you have a 1 7/8". You need a 2" ball to tow this boat, but you can purchase one in the parts department.

20 minutes later, while explaining the proper way to install the safety chains. The "guy" is asking about the purpose of the little wire with the "S" hook. The salesman explains it is an emergency break away to activate the trailer brakes if it becomes separated while driving.
When the "guy" drives off, I asked the salesman if that was a common occurrence which is said was very common in the COVID era. Everyone is buying a boat. He also said they have many calls for help within the first 20 minutes after leaving.

My takeaway: Anyone can tow a trailer regardless of weight or vehicle design because the salesman said so.