1300 lbs tongue weight.
Which is a big fucking trailer at 10% tongue weight.
No, he's not towing 1,300 pounds, he's towing something that reduces carried cargo capacity by 1,300 pounds. (The impact is, IIRC, typically a bit over 10% of loaded trailer weight.)
The F150's towing capacity appears to be 5,000 to 14,000 pounds (random source: https://veteransfordtampa.com/ford-f-150-towing-capacity). You could tow a 1,300 pounds trailer with a regular car, e.g. the 2023 Ioniq 5 has 2,300 pounds of towing capacity.