It'll be fortunate if it's only half-baked. These digital assitants are already rough around the edges with how they sometimes confidently provide inaccurate information.
Add on Google's absolutely abysmal product development track record and the internal confusion over being forced into doing this and this isn't a stand alone application but it's being integrated into something, and it's a lot.
its only going to get worse. because there will LLMs like chatgpt pumping out content for SEO content mills with no vetting for accuracy, then the next generation of LLMs are trained on them thus further corrupting the knowledge base they pull on to produce new content. its going to be a horrible feed back loop.
Then there will be some market for better-trained LLMs, which it will still be possible to make using curated data sets, but that will be expensive, and product differentiation will be messy. We're in for quite a ride. I can't predict the outcome. Maybe there is no stable outcome.