I'm also having these issues and unfortunately kironet's fix has not worked. Has anybody found any other workarounds?

I'm also interested in this - the default view setup is completely non Mac-like and is not what anyone would ever want. I haven't found any great options other than trying to hide the TabView and using other controls to change the selected tab.

I've just been able to get it running with Xcode 26 and macOS Tahoe in the UK.