Just want to note that you specifically mentioned Microsoft working with open source hackers in this comment saying that the ship has long since sailed on Chrome/Google contributing to the open web.

I don't know, never say never I guess. I'm certainly not going to defend Google's track record on openness and privacy -- there have been, under even the most generous of interpretations, huge missteps, and I don't think they deserve the benefit of the doubt -- but they do contribute. Edge backed by Chromium?