Operating systems of that era were designed based on UX research to help people use the unfamiliar operating system.
Subsequent ones were designed by UI designers, and opinionated senior managers, who already knew how to use them, and took out usability features to make them "look nicer". This sort of worked when the opinionated manager was Steve Jobs. Most managers are not Steve Jobs.
> in some applications they seem to have taken extra steps to make it difficult to find the line to grab
Pet peeve of mine in Windows where the line is at most one pixel now. They also took away the coloured distinction between title bars for the active window, so you don't know where keystrokes are going to go.
Subsequent ones were designed by UI designers, and opinionated senior managers, who already knew how to use them, and took out usability features to make them "look nicer". This sort of worked when the opinionated manager was Steve Jobs. Most managers are not Steve Jobs.
> in some applications they seem to have taken extra steps to make it difficult to find the line to grab
Pet peeve of mine in Windows where the line is at most one pixel now. They also took away the coloured distinction between title bars for the active window, so you don't know where keystrokes are going to go.