I literally just bought a new mac studio for the sole purpose of writing a mac desktop app. The very first thing I tried on day one was to write a simple sidebar with customizable toolbar. and it crashed instantly. I'm really shocked this is a know issue and Apple has completely ignored it. Yes, I tried the remove: .sidebar hack, but the toolbar has so many bugs and it's impossible to add the toggle sidebar button and get it working with the customizer. everything goes crazy. Sample app I prepared thinking someone might give this some attention: https://github.com/sgehrman/SwiftUIAppBugs Apple developers have always been treated poorly. And Cocoa was also full of bugs. I had hoped swiftUI would finally work.