Oh, come on, seriously?

Drew1903 "Certainly, suggests that while, there may be other attempts at Chromium-based browser, ours is/will be the best."

Let's see how Edge Chromium develops before we jump to conclusions.  I certainly hope that Edge Chromium will stand heads and shoulders about Google Chrome, and I am doing my best to help out in that endeavor, but Edge Chromium is in early development at this point and only time will tell.  

"And, even, though, other things say they are the greatest thing since sliced bread, it may not be true, in practice."

Of the dozen or so Chromium-based browsers I know about, most are niche products intended to meet a particular need.  That doesn't translate into a first class general purpose, mainstream browser.  In the Windows environment, Chrome, Edge and Firefox are the mainstream browsers.  Brendan Eich is contending that Brave will be the new Chrome (that is, the browser that takes over the world), but I have my doubts, to be sure.

"Also, it is cool to have the pros & cons of default ad blocking addressed."

I don't use ad-blocker on computers -- other than in-built blockers that go after malicious ads and trackers -- when I have a good (10-15 mb/s and up) connection.  It seems to me that content providers depend on ads for income, and if I'm going to read the content, I can put up with the ads.  

I do use ad-blockers on my travel laptop (hotel connections are often/usually slow) and on the laptop that I use at the railroad museum (abysmal connection speed, and nothing can be done about it),  simply to get to the content within a reasonable period of time.

But in general, I don't think that ad blockers play fair, and I am glad that Edge Chromium is using tracker-blocking instead.  That's fair play and sound practice.