If you want to use an AI assistant, @protonprivacy Lumo and DuckDuckGo https://duck.ai are better privacy respecting AI assistants. Lumo is E2EE all the way through, Proton doesn't see any of your chats, so they couldn't target ads even if they wanted to.
https://www.404media.co/how-chatgpt-targets-ads-to-you-based-on-your-prompts-phone-number-and-email/