Damn if you think any of that is problematic (which is not because you can opt out, and by default is not enabled), specially from the "capitalist cancer" pov wait until you hear about this obscure browser called Chrome from a company you might have heard called Google.

Edit: Forgot to mention, they stopped injecting the links 2 years ago as they claim it was a mistake (maybe, maybe not, but for sure not the case right now) -> https://brave.com/referral-codes-in-suggested-sites/.