It's not clear to be Chromium-based Edge is an any worse product than Chrome (and in many ways is going further down the anti-ad-tracking route than Chrome, unsurprisingly), but I expect the Trident integration in their IE Mode is better than IE Tab?
I doubt anyone is using Edge enough to find out. Generally now people are trained to Chrome regardless (most people home and work), and w/the IE Tab extension there is no motivation to investigate.
As a side note, I would guess most non-GSuite users are logging into their Google account on Chrome and getting a unifed bookmark, whereas if they sign into a MS account at work/Edge, it will have to be their work Office365 account, breaking their unified browsing experience.
