That looks exactly like an office app should look like. Basic interface patterns, clear distinctive visual areas and borders, all in the tradition of a classical graphical user interface. And yes, classical GUI more or less peaked in the early 2000's and it has generally been a downhill from there because the irresistible need of the industry for offering "something new" every few years.

Excuse me word processors are meant to have a ribbon, backstage view and where in LibreOffice is a sidepanel for me to talk to LibreLM to do agentic editing?

Plus if it runs on Android it must support snackbars.