Back in December of 2021, upon updating to iPad OS 15, the ability to enter Geometry Dash ended up being forcibly removed from many players including myself. As a result, I was completely unable to finish the "one level completion per day of every December of an odd year" obligation I set myself. This was ultimately resolved by a future iOS update and upgrading to a newer iPad, but I decided to wait until turning 21 for... reasons.
I have nothing more to add.