Brother in law and I share a travel trailer. It's about 7,500 pounds when loaded for a trip, 32' bumper to hitch. Probably fairly middle of the road size and weight compared to what's out there.
BIL just got a 2024 GMC 1500 5.3L and he let me use it for a trip. Since then I've gotten my 2020 Ram 1500 5.7L and I've done a trip with that as well.
I intentionally got my Ram with the 3.92 rear end. Mainly just because of the higher factory tow rating. BIL's truck has the 3.23 rear end, that lowers the factory rating on the GMC by about 2,000 pounds and just makes it feel sluggish IMO.
Not to bring up what seems like a huge rear end ratio debate lol. But my Ram with a little more power and the 3.92 rear end tows the camper effortlessly. The GMC feels like it's working harder. Even though it's a 10-speed, you don't get to take advantage of many of the gears.
Power aside, both trucks feel really stable cruising. I'd say the only variable is wind. One day the wind was steady 17-18mph, gusting almost 30mph. That's when a nice heavy 2500 with a diesel would have been great. My 1500 still towed well, I just slowed down a little on the highway.
All that to say, I feel very confident at this size and weight travel trailer. I feel like I could easily tow more safely. 5th wheel, probably not for me. Not really the weight as much as the height and just being more of a sail. I feel like I would want a heavier truck for that. But just my 2 cents.