Not sure if anyone or just European users can opt-out.

https://www.linkedin.com/mypreferences/d/settings/data-for-ai-improvement

The settings link from their email causes login loop. Direct link works. Not sure if on purpose. That would be evil.

> Starting on November 3, 2025, we’ll also use data from members in your region to improve the content-generating AI that enhances your experience and better connects our members to opportunities. This can help hirers find and reach you more easily, and assist members in creating content such as profile updates, messages, and posts. This could include data like details from your profile and public content you create on LinkedIn; it does not include your private messages. You can opt out anytime in your settings if you’d prefer not to have your data used in this way. If you’ve already submitted the Data Processing Objection Form, please check your settings to make sure your choice to opt out is shown.