Short term no. Langer term they would use it to leverage other things like Google does. Maybe not advertising, although they do seem to be leaning on that now with ads in software.
Yeah, I could imagine Microsoft making a bid. To people who don't follow tech product ownership, "Windows comes with Chrome instead of Edge" would be good PR and it could basically be Edge minus the rebranding.
Thinking about what companies have the adtech infrastructure to buy Chrome and make enough money the justify a bid high enough than Google just shutting it down: Microsoft, Meta/Facebook, Bytedance?
I don't see a real need for Chrome. The stuff they've done to break Adblocking makes it pretty much a dead project today. Web browser development should be open source and not for profit. There is a fair argument that it has been because of Google's funding. There's a strong argument that Chrome has existed to further Google's business and at a minimum protect it's business and ensure third parties didn't hijack all of their PPC revenue in the early days.
It is easy to foresee an outcome here where someone politically connected gets a hold of Chrome and does a lot of crap they shouldn't. The worst case outcome is unrelated to any of this, and something where we end up with government mandated garbage in a web browser. It is very possible that DRM and biometric age verification, and who the fuck knows what else thanks to AI, could be required either by the US or EU, and kill the open source web browser. That's worse than anything Google did.