Question Possible to focus the editor Game window on Play with Code?

A pretty minor thing, so not important

But I want to simulate clicking on the window when I press play in the editor
because at the moment
Mouse.current.position.ReadValue() returns wrong values until I first click on the window

I thought
UnityEditor.EditorWindow.focusedWindow.Focus();
would do it but No.

BTW I have GameWindow > Play Focused selected from the dropdown menu.

Like I said minor, just a minor anoyance. Cheers

 

Ha, Googling for an answer to this and went oh that looks promising, someone has asked it. Go to the link
Oh it was me that asked it 10 months ago. Any answers btw?

Looking at what I wrote above doesn't make sense
focusedWindow.Focus() <- I want to focus the already focused window