I posted the list of alternatives simply because OP asked for forks.
What’s wrong with Firefox
Me posting this list shouldn’t be an implication that I believe Firefox to be bad. I’m offering alternatives as the OP requests.
and how do the forks address those points?
Every one of the links I shared have detailed information about how their product mutates the original Firefox or Chromium browser. Do you really need me to copy-paste that information into a comment?
Or they can keep using the same engine with the same issues because gamers will definitely buy their next title en-masse despite the previously mentioned issues. Eg. Starfield