1.4b; assume 5% returns. That’s $70M per year for devs.

At $1M per year (equivalent to a good startup exit, but zero risk), that’s 70 engineers; probably senior to principal phd’s with 10 yr+ experience.

If that’s not enough to maintain a web browser, then pay them to simplify the damn thing.

The feature set of a browser is set by competitors and what sites use. If you don't strive to play that game you're irrelevant.