To be clear: I prefer to pay for things instead of having to see ads but 13€ / month!? For a meta product that has inherently user-hostile design patterns even without ads?
Very likely, but the final verdict is still out on that one, as far as I know. There are several other services and sites that offer similar opt-out of tracking and ads for money schemes (albeit not as ludicrously expensive).
I believe that's both against the spirit and any reasonable interpretation of the law, but I don't think it has been fully tested in court.
But they are not even offering to stop tracking me. They only offer add free experience and force targeted ads. I'd be ok with regular ads but not the targeted ads