Saying Edge is only browser streaming 4k video does not apply to New Edge-Developer edition. When attempting to open any video at Netflix.com gets "Error H7355" response. There is no error 7355 listed in Netflix support must be new Edge's own error message.
Feedback should preferably not be posted in the Feedback Hub; the product team have asked for that to be used only for feedback about 'classic' Edge. For the new browser, please use the in-app feedback option
(click the smiley on the toolbar or press Alt-Shift-i), as this goes directly to the team responsible.
It's vital always to mention which versions of Edge and Windows are involved in any feedback item or forum post.
There are also discussions about the new browser in the Tech Community, where the product team take active part.
It's entirely up to you whether to post in these Microsoft Community forums or in the Tech Community. Some may prefer only to have one set of forums going at once, and Tech Community may seem a bit confusing for new users.
Noel Burgess | Certified Pedant | Claims to know a bit about Windows Live Mail