FWIW. My experience towing a TT with a 2018 F150 4x4 Platinum Ecoboost:
Truck scaled at about 6,200lbs “ready to tow”. Me, the wife, small dog, camper shell, hitch, full tank, modest off-road tires, and some misc. crap in the bed. 7,000lb gvw - 6,200lbs = 800lbs for tongue weight.
TT was a Rockwood Mini Lite 2104s. About 5,500lbs gross and 750lbs tongue. Well under the stated towing capacity of the truck but (big surprise) close on tongue weight.
Pulled nearly 10,000 miles over 2 summers. Some flat, most big hills and elevation in Utah, Montana, Idaho, and Wyoming. Modest speeds 60-65mph.
Truck pulled just fine. Ecoboost + 10-speed is a great drivetrain. BUT, not all good.
1) Gas mileage was very poor with the premium gas twin turbo at about 9mpg average over the 10,000 miles. If you ask this motor to work hard, it drinks fuel.
2) Truck suspension was too soft for me. Ended up adding Firestone bags. Huge improvement.
3) The Ecoboost makes LOTS of power, but is VERY prone to overheating on long grades. Turned in to a saga that took a lot of research and work to resolve. Ultimate solution was a Mishimoto radiator and intercooler at $2,000+ (I installed).
After getting our feet wet with the “little” trailer, we decided to upgrade. First challenge was getting an HD truck. Took 8 months. After that, we couldn’t find the bigger trailer we wanted, so we pulled the “little” one another summer with the new “bigger” truck. I won’t babble on about all the differences, but it was a vastly better experience vs the F150.
Now we have the “bigger” trailer, and initial experience with the new rig is still a vast improvement over the F150 + “smaller” trailer. Amazing power, zero overheating, far more stable and confident on the road, and 11mpg with twice the trailer!
I too did not want an HD truck as a daily driver. However, after a year of driving it I don’t hardly notice anymore. I loved my F150 (I’ve had 4 over the years). I also love the new F250 PSD. Both are awesome trucks, but with very different capabilities.
For me, the F150 is a non-starter for trailers much heavier than about 6,000-8,000lbs. Can do? Depends. Tongue and rear axle weight is challenging. Is an HD truck a better choice above that range. Yup.