Whether or not you need a weight distribution
hitch and equalizers depends on your trailer
design and the vehicle you put in it or on it.
Every trailer and every vehicle you put in
a trailer changes the tongue weight.
For example - this is the trailer I pull
just about every day - notice the axle
placement …

.
If I transport a vehicle in the usual position
(front end forward) then I benefit from
a weight distribution/equalizer set up.
However - if I reverse the vehicle then my
trailer is balanced and I don’t need one.
Most folks haul the same vehicle(s ) in or
on the same trailer pulled by the same
tow vehicle.
My advice is to experiment with your set up.
Jim