We’ll that’s the thing. Windows is based around windows and macOS is based around applications. I get that you want to use macOS like you use windows but that is the historical usage of these UI.
Except when windows behave like apps and you close a window and it closes the app. Or it’s a single window app but closing the window does not close the app. Or when you full screen a window and now everything is inconsistent. Or when you use Mission Control and now the switching paradigm is based on Windows and not Apps.
Even Apple’s own applications break the “it’s an app and not a window” paradigm in many instances. Without trying, there’s no way to tell if clicking on the close button will quit the app or just close that window even for apps that only use a single window.
That made sense in days gone by when things like photoshop's tool palettes were in separate windows. It makes no sense in 2023 when windows are self contained units. Apple have changed all sorts of other things about their desktop environment. IMO they ought to change this too.