For me, on a Mac, I consider Safari dead in the water ever since they crippled its extension support, so that's a no-go.

Chrome is made by whom I consider a privacy rapist, so I refuse to use that. As for any Chromium derivatives - well, given its origins, I consider them tainted, so no-go as well on those.

That leaves only Firefox, which to me is quite capable and fast, and I really have no issues using it.

I do think governments should look closely at Chrome's monopoly, since it's Google's (or Alphabet, or whatever name-du-jour) power play in vertical integration/takeover for its own advantage, and way to crush competition.