We hackers like to complain about stuff that bother us, but the truth is they don't bother anyone else but us. Firefox didn't lose marketshare to Chrome because it had telemetry. Users don't care about it, and if they did, they'd know Chrome is doing it much worse. Same for "cloud nonsense and ads" - you really think they disliked it so much, so they went to Chrome were they are forcefully logged-in, have every action linked to their Google account and have inferior adblockers? C'mon.
It's kinda like saying "I'm moving to North Korea because freedom of speech in the US sucks!"
It's kinda like saying "I'm moving to North Korea because freedom of speech in the US sucks!"