Welcome to the forum!
It's all about the pivot point and the length of your trailer (either TT or 5W). Your pivot point for a TT is the ball at the end of your vehicle whereas for a 5W, it's the hitch receiver in the back of the truck. BOTH setups are going to require extra clearance on the inside of your turn as NEITHER will track behind your tow vehicle.
A longer trailer of either design will require more inside clearance. I think, at least in theory, comparing a TT and 5W of equal length, a TT will track slightly worse than the 5W during the turn due to the pivot point being further aft. But in practice, it doesn't matter. You just learn how much space you need and get better and better the more you drive your rig!
That's my 2 cents anyway...