Used FF for over a decade, switched to Vivaldi about a month ago. It's pretty much as the article says, adblocking not as good as FF+uBlock, but it mostly does the job, including YouTube videos. Note the inbuilt adblocker also works on mobile, tho there's no extension support there. One upside I discovered is that the performance is slightly better at least on my mid-range devices, the web is just built around Chrome-related browsers nowadays unfortunately. It's a bit feature-bloated for my taste with even an inbuilt browser-game (you can hide it from the menus), but honestly that's at least cute and more sincere than AI crap.