That only works for windows that you would be opening and closing, not persistent ones like chat apps or music players?
Many of those apps minimise when closed and reopen when calling, so often it is not really an issue (although it's sometimes annoying that you have to specifically tell the apps to exit when you do want to close).
Many of those apps minimise when closed and reopen when calling, so often it is not really an issue (although it's sometimes annoying that you have to specifically tell the apps to exit when you do want to close).