> Someone buys Chrome and needs to turn a profit from Chrome, rather than using it to indirectly profit from the web in general like Google does -> Chrome probably goes to shit and development massively slows

I kinda believe Chromium is already complete enough, and government can take over it, and keep in running in maintenance mode (security fixes through possible bounties) with minimum expenses, and it will be great product: reliable, performant, secure and without corp-crap-tech.