This is an experimental Swift Package that implements "reorder on drag" behaviour for SwiftUI views. I made this since I didn't like the SwiftUI's inbuilt drag and drop implementation.
The main component of the package is ReordableForEach struct which is very similar to ForEach.
ReordableVGrid implements a version of the LazyVGrid (shown in the video).
If you want to use it, see docs in the code or the example app.