> Google currently shares data across its services for the purposes described in its Privacy Policy at g.co/privacypolicy and depending on the previous choices you’ve made about your privacy settings, such as Web & App Activity, YouTube History, and Personalized ads
> As of March 6, 2024, new laws in Europe will require Google to get your consent to link certain services if you want them to continue to share data with each other and other Google services as they do today. For example, linked Google services might work together to help personalize your content and ads, depending on your settings.
This is going to be interesting if I do it to my account.
I remember having to somehow contact support back in the day when google made me merge my youtube account and my gmail email, since they had the same name and email address. Lots of strange buggy behaviour.