I was very pleased by the return of Mica in Edge v120. but the current implementation in my opinion needs few improvements. 1. This one is kinda suggestive more than objective, but using Mica alt like Chrome implementation is much more pleasing to the eyes instead of normal mica. 2. Making the selected tab + the search bar, take a little bit of mica tinting (darker tinting in dark mode and lighter tinting in light mode) instead of the normal solid color would be a big improvement to the design.