I have some pieces of feedbacks to share which have not been fixed yet. Please consider working on them and fixing since some affect the experience for someone who is switching from the Legacy Edge to the new Edge:
Splash Screen in place of white screen when launching Edge
White flash appears in following cases:
On browser & Edge app launch
Shifting tab to new window
reopening tab which has been suspended
Scroll bar redesign similar to one displayed in internal pages.
Taskbar peek when in full screen, similar to the Legacy Edge.
Certificate viewer redesign to show the contents in dark mode.
Chromium Upstream Emojis to be removed and only OS ones to be showed.
Please consider working on them soon. These changes are small but will make for a huge improvement.