Tap area of a button differs whether it is in toolbar or not

To compare the tap areas of two similar buttons,
the sample below is run in the preview canvas for an iPhone with iOS 26.

Button 1 is outside the toolbar,
whereas Button 2 is inside the toolbar.

When tapping outside Button 1 near its edge,
unexpectedly the action is triggered.

When tapping inside Button 2 near its edge,
unexpectedly the action is not triggered.

Why are the tap areas of similar buttons not similar ?
How to make a tap area have the edge of the button ?
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import SwiftUI


struct SampleView: View {
    
    var body: some View {
        
        NavigationStack {
            
            Button(action: self.action) {
                
                Text("Button 1")
            }
            
            .buttonStyle(.glassProminent)
            
            .toolbar {
                
                ToolbarItem {
                    
                    Button(action: self.action) {
                        
                        Text("Button 2")
                    }
                    
                    .buttonStyle(.glassProminent)
                }
            }
        }
    }
    
    
    private func action() {
        
        print("Action Triggered !")
    }
}


#Preview {
    
    SampleView()
}