The same is clearly coming for Chromium forks, which is why I've always thought the privacy and ad-blocking forks are a joke - if they ever gain enough marketshare, or if google just tires of the public open source charade, they have no chance of maintaining a modern browser on their own.
This is all the more likely now that Google has been emboldened by not having to sell off Chrome for anticompetitive reasons.
Now, I'm of the opinion that they should have been forced to sell off both, and maybe Chromebooks too, for the good measure.
No company with a direction as vile and openly user-hostile as what Google currently demonstrates should have anywhere near this level of control over the ecosystem.
Maybe the development will slow down, but let's be honest: we would still be fine if Android and iOS had stopped "improving" years ago. Now it's mostly about adding shiny AI features and squeeze the users.
Facebook was once small too. Yet people happily signed up, giving up their privacy in the process. What makes you think the remaining companies offering a free browser wouldn't try to monetize users in a similar way? How many people are willing to pay $5/month for a browser?