Exactly. When I have some files open, I don't actually care what the application is. I don't care to keep a hierarchy of the owning applications in my mind. Whe

Exactly. When I have some files open, I don't actually care what the application is. I don't care to keep a hierarchy of the owning applications in my mind. Whether a docx file opened in Word, Libre, Pages, TextEdit, or whatever... that doesn't matter. The file/document is the context. The application which opened it is just an implementation detail in the "app" paradigm. I may have chosen the applications on my machine for many reasons, but ultimately I want to switch between files/documents because they are the real context. The rest is noise.