According to this article on Apple Insider, Facebook’s CFO is complaining that iOS 14 will hinder Facebook’s ability to track users across apps and the web and will reduce its ability to serve targeted ads and measure ad effectiveness.
Targeted ads, and ads in general, are not a problem for me because I block them all. If a web site will not let me see their content without ads (their right), I move on to other sites that will. But tracking me across the internet, even when I will never see ads or even if I will, is a problem. It’s the tracking, not the ads I want stopped.
The internet is not working correctly until Facebook and Google are broken. So kudos to Apple for anything they contribute in that regard.