https://www.vox.com/recode/22404323/ios-14-app-tracking-transparency-opt-out

App Tracking Transparency is here, but many apps aren’t offering it yet.

Apple’s mobile operating system update, iOS 14.5, went live today with a highly anticipated, long-awaited privacy feature the company first announced way back in June 2020: App Tracking Transparency. But you might not notice it on your iPhone in the near future.