[typeiierror]

This headline isn't accurate - the referenced report from Flurry shows an average opt-in rate for apps they track, which notably _excludes_ Facebook.

[the_snooze]

The referenced report doesn't even mention Facebook. https://www.flurry.com/blog/ios-14-5-opt-in-rate-att-restric...

That said, if the Flurry SDK is on a large and representative sample of mobile apps, then this measurement is relevant to Facebook too because Facebook's SDK would be operating in the same app ecosystem.