The control doesn't render at all in iOS with Xamarin Forms 4.x releases. Works fine in Android
Last properly working version is Xamarin.Forms 3.6.0.539721
Some Findings
var size = Device.Info.ScaledScreenSize;
Gives 0 width and height in iOS with Xamarin Forms 4+ releases but works fine in 3.6.0.539721
Xamarin Essentials as an alternative to set the Cell sizes works
var width = DeviceDisplay.MainDisplayInfo.Width / DeviceDisplay.MainDisplayInfo.Density;
The control doesn't render at all in iOS with Xamarin Forms 4.x releases. Works fine in Android Last properly working version is Xamarin.Forms 3.6.0.539721
Some Findings
var size = Device.Info.ScaledScreenSize; Gives 0 width and height in iOS with Xamarin Forms 4+ releases but works fine in 3.6.0.539721