- Controls don't match equivalents of the modern parts of the Windows system and default apps
- Tooltips (no transparency or fade-in)
- Right-click/context menus (no transparency or animations)
- Dropdown menus (no transparency or animations)
- Hover effects (no reveal effects)
- And they're also delayed, which makes the browser feel more sluggish
- Loading wheels for HTML video and in the Updates section of Settings
The new icons in CanaryThis puts mobile icons in a desktop space, which makes it feel inconsistent with desktop apps (this would be fine as long as the rest of Windows and Outlook on the Web are also getting icon refreshes to match mobile icons, but we haven't heard anything about this)
Apart from the font and the current iconography, Edge keeps Material Design from Chromium.
Anything I'm forgetting?
EDIT: looking more closely at their wording on the iconography and here, it looks like the new icons are going to be the same across all of Microsoft.