How to move a Rigidbody2D with directions from the NavMeshAgent?

I'm trying to move a Rigidbody2D with directions provided by the NavMeshAgent. Here's what I have as my code:

 public class Test : MonoBehaviour
 {
     NavMeshAgent enemyAgent;
     Rigidbody2D enemyRB;
     public GameObject player;
 
     private void Start()
     {
         // Initialize NavMeshAgent
         enemyAgent = GetComponent<NavMeshAgent>();
         enemyAgent.updateRotation = false;
         enemyAgent.updateUpAxis = false;
         enemyAgent.updatePosition = false;
 
         // Initialize RigidBody2D
         enemyRB = GetComponent<Rigidbody2D>();
     }
 
     // Update is called once per frame
     void Update()
     {
         enemyAgent.SetDestination(player.transform.position);
         enemyRB.velocity = new Vector2(enemyAgent.nextPosition.x, enemyAgent.nextPosition.y);
     }
 }

I may be misunderstanding what nextPosition does, but I'm treating it like it's a vector that, at that moment, is the direction towards the target (in this case, the player). I find, however, that the enemy GameObject just runs seemingly randomly up to the northeast.

Is this the way I should think about using the NavMeshAgent's "directions" to move with a Rigidbody? Or is there a better way that accomplishes what I'm going for? Thank you!

EDIT: Worth noting as well, I am using a package that allows me to create a NavMesh in 2D, called NavMeshPlus, found here on GitHub: https://github.com/h8man/NavMeshPlus