How to save panel size in a layout?

I like to have the game scene occupy a larger part of my screen. So whenever I launch Unity I have to resize all the other panels. Save Layout doesn’t seem to save panel size. This is how the default window looks like.

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This is how I want to save it.

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How can I do it?

Hey. I followed this - Unity - Manual: Customizing your workspace - and found that I have to select the newly created layout every time I open Unity again. Maybe there is a way to make a layout the default one but I cant find it.