How do you think TikTok recommends videos you like? How do you think YouTube shows you videos about astronomy or diy-stuff or whatever you like and omit the videos about kajaking? How do you think amazon recommends you similar items or shows you what you bought in the last 6 months?
They all have a specific profile for you as a person. It doesn’t really matter if they don’t file it with your real name as a key. It may be called a number or just contain your email address. Nonetheless it get’s loaded and used when you open your browser, when you log in to those services. Rest assured they know you and your behaviours well enough. They don’t need to store your name along with that. And don’t tell me you have 20 google accounts, clear your cookies and have all the browser extensions installed to evade all of that.