K. Idkt I'm just making more stems for more pot. LmaoWell, fluxing is a specific type of training to create a particular shape; two main horizontal branches with side shoots off of them if I understand it right. But not all LST aims for that outcome. For some it's using the ties to move limbs around while still keeping a more natural shape.
So I would say fluxing uses LST, but not all LST is fluxing.