Select the latest unique object from array of objects : Javascript

Question

I am having array of objects with the following structure

const arr = [
  { id: 0, name: "abc", userid: "0", lastseen: 1645079273000 },
  { id: 3, name: "pqr", userid: "456", lastseen: 1645079273008 },
  { id: 1, name: "lmn", userid: "123", lastseen: 1645079273001 },
  { id: 3, name: "pqr", userid: "456", lastseen: 1645079273002 },
  { id: 4, name: "xyz", userid: "123", lastseen: 1645079273003 },
];

I want to return the objects where userid that is unique with latest entry should be returned. Ideally I might get userId as string 0. so to remove that added a filter clause

My approach:

const result = [...new Map(arr.filter(node=>node.userid!=="0").map(node=>[node.userid, node])).values()];

Output expected

[
  { id: 4, name: "xyz", userid: "123", lastseen: 1645079273003 },
  { id: 3, name: "pqr", userid: "456", lastseen: 1645079273008 },
]