Sort of a puppet browser made only for proving the court that the giants are not technically a monopoly, while ranking a bare minimum number of users for them to count.
While that's not entirely unreasonable, I don't think that's the doom of Mozilla. Puppet or not, their tangled codebase makes it a pita to contribute anything if you're not being paid a salary for it.
Despite having a high expectation for the "free browser", deep down we know that it's the same "Free in theory" software, not unlike Java or Vscode. Software that's made by a company and once they stop pouring money on corporate development and support the project will become a zombie in no time.