They only get what you give though. Plus I feel like the whole "oh no they'll get my data" arguments for a lot of things pretty weak. Being one that briefly used to work in data science and adtech. They don't know you personally, you're just in a cohort of similar people. You're not individually identifiable. Which is fine by me. I'd rather get given targeted ads (when they're not blocked) than the absolute wild west of a mess ads were in the 90s and early 00s.