Menu items are context-aware. Are you in exactly the same place in both Xcode 16 and 26, so that the menus and the inspectors should be the same?
The little code I can see behind the menus in those screenshots is different, so go to exactly the same file, in exactly the same place and see whether the inspectors are there or not.
If they have definitely been removed then you should raise this as a bug, at: https://feedbackassistant.apple.com/
Topic:
Developer Tools & Services
SubTopic:
Xcode
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