Assigning .compact to traitOverrides.horizontalSizeClass will restore the tabs to the bottom of an iPad, but if your app has more than 5 tabs you will have a more option similar to the iPhone tab interface. If you have an app with 6 or more tabs and want them all displayed you should assign .unspecified to traitOverrides.horizontalSizeClass which restores the original look and functionality prior to iOS 18.