If there is not navmesh then AI will avoid it. AI Move to functions use navmesh. I don’t know for sure what pathfinding actually does, I don’t really see differences when I’ve used it.
If you use Behavior Trees, there is a Move Directly To task which ignores navigation. Not sure how the code is set up exactly, but I’d image it would set location on tick lerped from it’s start point to the desired end point.