When Windows 7 was the latest, people said that about Windows XP. When Windows XP was mainstream, people said that about Windows Server 2003 with the classic theme.
Hrm. Don't know about anyone else, but Windows 7 was the first ms os I felt genuinely impressed by since DOS 6.2. (also the last) The big difference is the migration away from native apps. There are numerous reasons why getting out from underneath decades of MFC and old C++ dependencies needed to occur, but the choice to go the electron/react-native route seems to have left them with a 50-cent-bin-at-the-dollar-store UX.