I still remember those times in the early noughties where MSIE6, MSIE5 and MSIE4 was always a concern when doing the silly JavaScript tricks, where each browser

I still remember those times in the early noughties where MSIE6, MSIE5 and MSIE4 was always a concern when doing the silly JavaScript tricks, where each browser had a slightly different way of accessing the DOM tree. However, as I'm reading this in 2020, I cannot stop but think of Google (incl. YouTube) doing the exact same tricks to all the browser vendors that Microsoft and MSN did to Opera and Mozilla back in the day. (Why in this day and age is User-Agent sniffing still the way so many services do business?! Including those provided by Google itself?!) Not to mention the inconvenient fact that Chromium pretty much has the monopoly nowadays; Vivaldi itself is based on Chromium, so, they can't quite go around badmouthing it, either. The bigger issue today is with the `User-Agent` strings -- neither Vivaldi nor Brave have their own, and even SeaMonkey is forced to pretend to be Firefox, else, none of the major websites would work. So, when you look at all these web counters nowadays on browser share, Brave, Vivaldi, and probably a bunch of other Chromium-based browsers, cannot be tracked, and may look exactly the same as Google Chrome, creating a self-fulfilling prophecy.