This is an order to sell, not break up.
Currently, it’s still recommended actions to the court. Nothing has actually been finalized in terms of what they’re going to actually end up trying to make Google do.
Google must not remain in control of Chrome.
While divestiture is likely, they could also spin-off, split-off, or carve-out, which carry completely different implications for Google, but are still an option if they are unable to convince the court to make Google do their original preferred choice.
A split-off could prevent Google from retaining shares in the new company without sacrificing shares in Google itself, and a carve-out could still allow them to “sell” it, but via shares sold in an IPO instead of having to get any actual buyout from another corporation.
Selling user data, selling ad placement, subscriptions for paid services, enterprise-grade support contracts, and the like.
They could also take an approach similar to Google, branching back out from being just a browser into a suite of related tools that Chrome can then convince users to switch to (similar to how Chrome gets users to not just use Google search, but also services like Gmail too.)