The easy fix is to make them slow down development, but I fail to see how that's a good thing.
For a more practical example, Linux is also developed mostly by paid employees, but they are from many different companies and thus improvements can't be weaponized as easily.
Or they could do what Brave, Vivaldi and others do and simply use Chromium as a base.
Don't you even see the problem?!
Even Microsoft dropped out from developing a web browser, it literally has a larger scope than a whole OS.
But sure, enjoy your Chrome OS proprietary "open" web.
Not sure if you remember all the "native" applets that actually were proprietary before Chrome came on the scene and made JS fast enough to kill them... ActiveX, Flash, Java... Those were the dark ages, because of Google the web is more open and better than ever...
https://www.w3.org/membership/list/
It's a lot more than just Google...
my ad-blockers ruin plenty of websites. never met a site that was broken due to FF itself.