It appears not but maybe there is a setting buried somewhere which will allow that. Does anyone have idea if this is true or not?
Can Objective-c projects be created with Xcode 15?
Does this solves your problem? This shows the way to do it, it seems.
https://codermite.com/t/is-it-possible-to-create-objective-c-projects-using-xcode-15/
Yes it does. But of course not SwiftUI projects.