The Global Media Controls key Icon is changed.
Before:
After (Now):
More info about this: this changed happened around 1 weeks ago in Google Chrome Canary, now Microsoft Edge insider got the new change too.
in case you're wondering how to get the Global Media Controls button on your Edge Insider Canary, you can do so by enabling this flag in: edge://flags/
Global Media Controls
Enables the Global Media Controls UI in the toolbar. – Mac, Windows
Another appearance change: notice the color in the omnibox search suggestions.
Before: it was gray
After (Now): it's pitch black, just like in the classic Edge.
New Tab Page Customization
@HotCakeX Microsoft has made another small change in the color of the omnibox in Canary:
And it seems that this time it is a change "made on purpose" by Edge developers, I like it.