Never say never, but to be frank I see this as an unlikely scenario.
Because Chrome utterly dominates the browser market, it’d be very easy to accuse them of being a monopoly. Regulatory bodies would probably like to do so, but their direct funding of Mozilla is Google’s way of defending themselves from such an accusation.
I probably wouldn’t break my back doing it. Yeah, I’d like for more people to start using Firefox, but there’s not much I can say that Firefox objectively does better than Chrome if you’re not in the privacy space in general. It still has some telemetry out of the box, it also seems to have difficulty playing Netflix in HD, which is a big deal for some people.
FWIW I happen to think Brave is a pretty good browser, I don’t love it but if they cut out the bloat, all the crypto nonsense and the VPN, it’d be pretty close to an ideal browser. But I do agree that I don’t want to live in a world where Chromium is literally the only browser engine left. I used to use Brave on mobile and Librewolf on desktop, but reading that blog post about Firefox and the competition, pushed me to download Mull and start using it as my main browser on the phone.
It is unfortunate, I think Chrome and Firefox are pretty much on-par with features, which is amazing given the size of their respective companies. Idk if the Manifest rollout has happened already, but I’d like to see if that helps Firefox. Brave does seem like they’ll still have ad blocking via their native blocker.