If you are against Google pushing their "evil" stuff on people -- not just you, but all people -- well, Google thinks they can get away with that because people consider their browser better (or those people are just more comfortable with Chrome). Stuff like this, i.e. more options for people, is actually very helpful in reigning Google in a bit. Other Chromium based browsers such as Edge or Brave help as well.
BTW, my personal pet peeve with Firefox is lack of MIDI support, but there are lots of other things. I like that I can search Google by voice in Chrome, and my 6 year old loves that especially. (I don't know if ungoogled-chromium can do that though) I like the way you can grab tabs and drag them around and you know where they will go with Chrome before you drop them. (I have several monitors so this is a many-times-a-day thing for me and it feels awful in Firefox, comparatively). And I hate the ads and recommended sites on the "new tab" page.