This if your Rovio Player Support team speaking.
It has come to our attention that some players may have issues accessing mobile games after they update to iOS 16. To avoid problems accessing Angry Birds 2, we suggest you do not update to iOS 16 just yet.
Please contact Apple support directly if you have already been affected by this. While the development team is investigating and looking for a workaround, you may also want to reach out to Apple support directly. We currently have no working solution yet, but we will inform you as soon as possible.
Thank you for your understanding.
Rovio Player Support Team