What an absolute shitshow this is going to be. If I want a digital assistant, I'll get one. Keeping concerns separate is what has always worked. This reads like Elon wanting X to be the "everything app". That ship has already sailed. The web is the everything app. Back when the web was new, you had AOL and Yahoo wanting to be the "gateway" to everything. How did that work out? My gateway to everything is my bookmarks folder. I don't want AI in anything I use locally unless I explicitly enable it and ask for assistance. IMHO, this is the reason so many digital assistants have failed (especially Microsoft's); because they tried to anticipate your needs rather than STFU and stay out of the way.
I'm old.
/rant