[noway421]

I minimise them quite frequently these days for something I want to tuck away. A good way to surface them is the "App Exposé" feature (Preferences -> Trackpad -> More Gestures). Shows all the hidden windows for the current app.

It's different to Windows though. If they're looking for something more similar to Windows, maybe Command+H (hide the active app) is a better alternative.

[domepro]

It's an alternative, but in windows minimizing works on a window, not the entire app. The philosophies of [apps] vs [windows] are just too different, I don't think anyone that wants windows can be happy out-of-the-box, with the apps vs windows thing plus with the minimizing being basically "putting the app to sleep" on macOS vs "putting the app away" on windows.