When Microsoft completely integrates its LLM into Windows, would you rather give that access to your browser, or would you rather plug in your own local model / turn it off entirely while browsing?

If a global LLM becomes standard, I'd want to plug in my own local model or disable it entirely, but I don't think Microsoft nor Apple are going to open up their operating systems and make it easy to do that any time soon. The option to granularly use your own models is a plus to me in that situation.