Anyone else noticed a change in the screen coating of the iPhone 8?

Im a phone tech, and I daily install around 20-30 tempered glass on iPhone 8 for a client.. in the last 2-3 month I have discovered a change in the iPhone 8 screen coating.. More and more tempered glass protectors will not stick on the screen.. All new phones.. Anyone else notices this.. And anyone have a fix?

Just added 1 more pic.. difference iPhone 8 different glass same issue..