SwiftUI Firebase Pagination Order Users by id

Question

I have a page for users in a grid view and would like to paginate the view to reduce bandwidth when a user scrolls. For now i know how to paginate a feed view but cannot for a user grid view. Below is my code and what i am trying to achieve.

This is the code i use to paginate a feed view:

func fetchUserPosts() {
        let query = Firestore.firestore().collection("posts").limit(to: 15).order(by: "timestamp", descending: true)
        
        if let last = lastDoc {
            let next = query.start(afterDocument: last)
            next.getDocuments { snapshot, _ in
                guard let documents = snapshot?.documents, !documents.isEmpty else { return }
                self.lastDoc = snapshot?.documents.last
                self.posts.append(contentsOf: documents.compactMap({ try? $0.data(as: Post.self) }))
            }
        } else {
            query.getDocuments { snapshot, _ in
                guard let documents = snapshot?.documents else { return }
                self.posts = documents.compactMap({ try? $0.data(as: Post.self) })
                self.lastDoc = snapshot?.documents.last
            }
        }
    }

I am trying to achieve the same for a usergrid view, below is how far i have gone with errors i have encountered. Any help is appreciated.

class PeopleViewModel: ObservableObject {
    @Published var users = [User]()

    func fetchAllUsers() {
            let query = Firestore.firestore().collection("users").limit(to: 20).order(by: "id", descending: true)
            
            if let last = lastDoc {
                let next = query.start(afterDocument: last)
                next.getDocuments { snapshot, _ in
                    guard let documents = snapshot?.documents, !documents.isEmpty else { return }
                    self.lastDoc = snapshot?.documents.last
                    self.users //Property is accessed but result is unused
    
                }
            } else {
                query.getDocuments { snapshot, _ in
                    guard let documents = snapshot?.documents else { return }
                    self.users //Property is accessed but result is unused
                    self.lastDoc = snapshot?.documents.last
                }
            }
        } 
}