I believe there are good targeted tasks. One Chrome plug-in called 'Tweeks' is a reimplementation of Grease monkey user scripting where you can make changes by posing natural language to an LLM that changes the page for you. It was posted here in hn the other day. [0]
Also I believe some agentic tasking can make sense: scroll through all the Kindle unlimited books for critically acclaimed contemporary hard sci-fi.
But stapling on a chat sidebar or start page or something seems lacking in imagination.