I can't recall so much from the early days but modern Chromium releases are packed with "shiny new toys" that the web-dev crews love. I deeeeeeeeeply appreciate that saying such a thing further entrenches the "Chromium is eating the world" perspective, but I'm just pointing out that web-devs love shiny toys and Chromium seems to ship them on the regular
So, too, do they ship an unholy number of C++ footguns, but omelet-breaking-eggs-etc-etc :-/
It got some initial launch attention but then usage fell a lot (I was at Google at the time), and plateaued for a long time whilst the team fixed bugs, ported to other platforms and caught up on the feature set. It took a lot of belief by Google to continue funding it during these quiet years when relatively few people used it. One of the biggest struggles the Chrome marketing team faced turned out to be that nobody even knew what a browser was let alone why they'd consider switching to a different one.
Still, the team didn't give up. They just plugged away at it, year after year. They caught up on features, added a thoughtful/controllable extensions API and were careful to stop power users doing things that would accidentally trash performance, like opening billions of tabs or installing extensions that trashed the browser internals (a particular problem for Firefox).
With all that said I think somewhere around 2015 or 2016 I switched back to Firefox because Chrome had become a CPU and memory hog while Firefox had stepped up its game and was a lot faster and more lightweight than Chrome.
It was superior in almost every way. All other browsers had to play the catch-up for a while - especially the performance.