Do SwiftUI Form edges need a minimum frame width?

Hi,

I use the SwiftUI Form for an iPad / Mac app and noticed the rounded edges around the Form fields or Sections will disappear (-> fields will extend straight edge to edge, squarely) if the available width is too small (i.e, here, around 320p).

As I am designing a form with some smaller fields this is visually ugly. I could obtain this outside a form but it is better to take advantage of the Form capabilities.
Is there a way to solve this?
Do SwiftUI Form edges need a minimum frame width?
 
 
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