I've always though iOS naming was pretty logical - Calculator, Notes, Messages, Mail, Health, Clock, Calendar, Photos, Contacts, Maps, Settings. They're all named as if they're the reference implementation and everything else is 3rd party.

Under Windows we have Notepad, Paint, Terminal / Command Prompt. Word and Excel are likely household names so it's tough to ask a random person who's never heard of them to describe their purpose. But they did have "Clipchamp" which was a pretty dumb program IMO.

Here's a potential reference for Windows app naming conventions in modern Windows: https://windows-11.fandom.com/wiki/List_of_apps