Change the window scale factor in a Mac Catalyst app with the help of Dynamic (https://github.com/mhdhejazi/Dynamic)

Catalyst-ScaleFactor.swift

override func viewDidAppear(_ animated: Bool) {
  view.window?.scaleFactor = 1.0 // Default value is 0.77
}

extension UIWindow {
  var scaleFactor: CGFloat {
    get {
      Dynamic.NSApplication.sharedApplication
        .windows.firstObject.contentView
        .subviews.firstObject.scaleFactor ?? 1.0
    }
    set {
      Dynamic.NSApplication.sharedApplication
        .windows.firstObject.contentView
        .subviews.firstObject.scaleFactor = newValue
    }
  }
}