SwiftUI workaround for broken animation when deleting collection item with context menu.

SwiftUI_LazyVGrid_ContextMenu_Delete.swift

import SwiftUI

struct Item: Equatable, Identifiable {
    var id = UUID()
    var color: Color
}

struct ContentView: View {
    @State var items = Array(repeating: [Color.red, .green, .blue], count: 10)
        .flatMap { $0 }
        .map { Item(color: $0) }
    
    var body: some View {
        ScrollView {
            LazyVGrid(
                columns: [
                    GridItem(
                        .adaptive(minimum: 64, maximum: 128), 
                        spacing: 10
                    )
                ], 
                alignment: .leading, 
                spacing: 10,  
                content: {
                    ForEach(items) { item in
                        ItemView(item: item)
                            .contextMenu {
                                Button(
                                    role: .destructive, 
                                    action: {
                                        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
                                            withAnimation { 
                                                items.removeAll(where: { $0.id == item.id })
                                            }
                                        }
                                    }, 
                                    label: {
                                        Label("Delete", systemImage: "trash")
                                    }
                                )
                            }
                    }
                }
            )
                .padding(10)
        }
    }
}

struct ItemView: View {
    var item: Item
    
    var body: some View {
        RoundedRectangle(
            cornerRadius: 10, 
            style: .continuous
        )
            .fill(item.color)
            .aspectRatio(1, contentMode: .fill)
    }
}