@mizzle
Almost every day there is a "peeling" doorbell thread; there are 268 threads about "peeling" Google Nest Hello Doorbells in this forum. One of our Nest Hello doorbells--20 months old--is peeling. That Nest Hello and another one also won't ring the internal chime anymore due to a failing internal battery (another defect with hundreds of posts here in this forum). It certainly seems both are clearly known defects. Google Nest won't replace them if they are more than 1 year old.
In previous posts, I've suggested that customers with Nest Hello doorbells that are peeling or failing to chime due to a failing internal battery be given a discount on a new, re-designed Google Nest Hello Doorbell that has a user-replaceable internal battery obtainable from Google Nest and that corrects the susceptibility to peeling. So far, no one from Google Nest has responded.
