Issues I noticed when using GNOME on a Tablet (tested entirely under Wayland):

This list will probably get a lot bigger as soon as my tablet is actually usable with Linux.

• everywhere
  • scrolling doesn't feel snappy and is too slow
  • indicate that swiping from top exits fullscreen
  • csd headerbar buttons stay active (css-pseudoclass) after moving window
  • using a stylus adds a second cursor in some windows
• shell
  • all gestures steal focus (especially annoying with keyboard gesture)
  • stylus cursor doesn't look good
  • using a stylus in the overview seriously makes things go wrong
• epiphany
  • moving tabs with touch is very laggy
  • two finger pinch has no effect on zoom setting
• photos
  • zooming is very laggy (way better in eog)
  • swiping left/right to change picture imposible
  • zooming out should be possible with animated zoom back in afterwards
  • zooming out should not expand zoom button
  • editing options should have expand/unexpand icons, should be unexpandable
  • cropping doesn't work with touch
• software
  • make top banner touch-slideable
• nautilus
  • long press menu doesn't work with folders in home folder

  • moving stuff isn't working -> nothing happens (moving is somehow initiated, sidebar entries get grayed out)

• calculator
  • buttons stay light colored (like on hover) after touch press
• documents
  • two finger zooming impossible
  • no page changing animation
• evince
  • notes just look ugly, also without touch
• lollypop
  • touch scrolling inside album popup causes accidential selections