you might not have known this, but google - the company you use for searching, email, maps, translation, data storage, watching videos, voice assistant tech, backing up your phone, storing photos, finding images, making purchases, making your phone's operating system, advertising, providing webfonts, running website analytics, providing captcha authentication, and browsing the internet - might be tracking you
If you didn't yet know, Google is datamining GMail etc for purchase confirmation emails amongst other things and aggregating it for their own purposes in an extremely detailed way.
(Everything you purchased with order ids, detailed billing details, VAT, including subscriptions etc)
Do not believe a single word about how this information is kept private. There is zero reason to build a system to aggregate this and then not use it to make money out of.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko