Just because you're paying $10 a month does not mean that Meta will stop farming your data. Sure, they won't shove you any ads, but they will stockpile data for the day you decide that $10 (it's not really $10.. they will increase this price 2-3 years down the line once they feel they had gathered enough users, the Silicon Valley way) and then pump you with ads that cater you.
They don't directly sell data, nor does Google. They analyze and use that data to sell targeted ad space.
There are data brokers that gather a ton of data and openly sell it, but Facebook isn't one of them. Their customer data and the resulting ability to sell extremely specific ad space is probably their single most valuable; why would the sell it itself when they can sell the access it grants instead?
That $10 won't give you any real privacy. They will still collect every bit they can about you.
The $10 will just not give you targeted ads. Most likely, they will still select things for you based on your profile and also sell information from that profile to the real customers.
I'd take it at €5 if I used Instagram a lot. The current asking price is too high though, almost like the data is worth so much to them that they put the price tag high enough that it's unreasonable.