Average people probably don't care about the latest features but Google pushes Chrome very aggressively, so they end up using it anyway.
What annoys me the most, however, is that several things simply don't work in Firefox and the associated report is over a decade old, so with close to zero chances of ever getting addressed. Copying the content of a canvas element as an image to the clipboard is one of these things. In Chrome, this takes a right and a left click. Firefox didn't have such a basic feature last time I checked. There used to be a workaround, opening a blob URL in a new tab and then copy that, but this got broken later, I believe by a stricter security policy.
Firefox is essentially the browser equivalent of Fairphone. It's the most ethical option but it inconveniences you left, right, and center.
You meant Blink platform?
The browser ecosystem as we know it is in a tenuous state. It is unhealthy for the web that Chromium has become so dominant. It is a symptom of this imbalance that users line up to defend Apple's choice to lock out other browser engines from iOS. This kind of popular user sentiment would have been unthinkable to me in the era when Firefox first rose up to fight back against the IE singularity. Yet, here we are.