Hello I need some of your help! 
(if possible)
The following message I sent it to the release notes:
Ok so, at first I was excited until I noticed how the following feature works:
I thought we would be able to set an Unit Vector which would serve as a multiplier to the current MaxVelocity property, where the default would be Vector3.new(1, 1, 1).
This feature works exactly like the old BodyPosition and to this day I still don’t know how to control these huge numbers to maintain a PROPER LINEAR VELOCITY.
If I am missing something here, please let me know; else let me know how I can maintain a linear velocity since I don’t want my objects to move as fast as possible to the goal and then slow down to reach it.
I am probably using the wrong Constraint here, so what I want to achieve is to be able to move an object by X and Z at a certain speed like a Humanoid ignoring completely the YAxis so the object remains affected by Gravity.