MS gave up on the universal Metro interface?
Sadly NO. UWP is the same thing except worse. Because now they sell less phones and it's stupider graphics style and less customisable. It's designed for a market that MS has lost and alienating desktop users. Where MS MAKES money.
it's a fact too, that an application is either designed for keyboard & mouse OR Touch or Stylus. Widgets are OK with touch. Serious application are crap with touch and tiring and slower with a stylus. Unless they are sketch centric.
The Win10 is a horrible mix of touch and mouse/Keyboard GUI, with a Tablet & Desktop mode that is stupid. MS touch has really improved since XP Tablet edition, if you have ONLY "modern" AKA Metro style apps (widgets) and Tablet mode on a 7" or smaller screen.
MS Stylus has hardly progressed for REGULAR applications on Windows since XP Tablet edition.
You have a few flagship surface stylus programs, the phone style tile based apps and then the bulk of productivity software needs keyboard and mouse for day long use. It's attractive in showroom or the first few days, then it it's crap compared to Windows 7.1 or Linux or XP or older OS X versions on laptops or ultrabooks.
Nice HW, but where is the widespread innovative application support and a consistent GUI? Changing the things you still can change in Windows 10 is mess. You sometimes even have to run powershell scripts to re-fix edge after updates.
People that think W10 is good obviously have little experience PROPERLY setting up computers or using alternate versions of windows (properly installed), never mind OS9, OSX, Linux, NT4.0 etc.