Properties pad doesn't work on my Visual Studio 2019 on Mac.
I tried it on tools like Button or Label. I restarted visual, closed and opened files and nothing has changed. On this video: https://youtu.be/76it8xVANbI?t=137 it looks fine but my properties pad doesn't display anything inside xaml file. When I click on filenames on the solution pad, properties pad displays info about those files.
I just searched the document and found this feature exists in Visual Studio 2019 for Mac version 8.4 Preview 1 (8.4.0.1935)
There says:
Xamarin:
You can now use the Properties panel to change your control's attributes when editing Xamarin.Forms XAML. To open it, go to View > Pads > Properties.
So you can update your Visual-Studio for Mac to version 8.4 Preview 1 (8.4.0.1935)
to use this feather.