It's clear the endgame is to cook AI into Chrome itself. Get ready for some big antitrust lawsuit that settles in 20 years when Gemini is bundled too conveniently and all the other players complain.
We'll soon get Manifest V4 that, for "security reasons", somehow includes clauses banning any AI other than Gemini from using the browser.
"that settles in 20 years "
And at that point it will be a fight mostly between AI lawyers :-)