I wonder if they will finally let you use past chats without having to turn on the data sharing, since it’s possible to store chat context on disk. (No chance).
It was always possible to store it in the browser’s localStorage, so…
it's not the best but I have a whole other account just for gemini. It's valuable to keep that context.
It still would need to go to the cloud so you can see the chat from another device logged in to the same user.
Google does not let you store your home and work address without storing everywhere you go on Google Maps. So indeed, no chance.