How to move a Spring Joint with a Rigidbody

Hello,

I have a scene where I have attached a Spring Joint 2D to a kinematic Rigidbody 2D. The joint itself is connected with another rigidbody which isn't kinematic. They move simultaniously only on Y axis. My question is - which is the better way to move the object with the Spring Joint - by manipulating its Transform through Update or making the rigidbody not kinematic and setting all its parameters to 0 and then controlling its velocity or position through Fixed Update?

Thank you in advance! :)