Amazon Rufus, for example, falls into this category and it's hard to even remember to engage with it. On the other hand, Amazon is happy to serve me absolute trash search results.
What most people probably want is an AI that can, for example, help organize their calendar transparently. Have a meeting coming up with a client? What if the AI can use tools to go find the latest info about the client? Check their LinkedIn, check their X, check their blog, research their company, give you a tear sheet on topics to discuss based on this in the calendar notes. If a user has to directly interact and instruct the AI, it feels like it defeats the purpose.