There's definitely some design fault with these phones.... I bought my iPhone 12 Pro on December 22nd, opened it on the 25th, and am facing the exact same problem as listed here. This is without a case. When I put the phone in a case, the side button literally take so much force to even respond, don't even talk about Apple Pay. Even without a case, I noticed that the side button definitely does not have the same click as the volume button and seems very mushy making some type of crackling sound when pressed. My father told me that it's normal and just to live with it. However, when compared with other phones in the household such as a XR and XS, one can tell there's definitely an issue. I'm utterly disappointed with this and really regret this purchase. It was my first phone bought with my own hard-earned money and now I wish that I had waited. There are so many posts on the internet regarding the issue, so there's definitely some design issue with the phones. Apple definitely needs to initiate a recall, so that all the people affected can get a chance to actually enjoy a phone, bought for $700+