Yes, you're not alone. I have the same phone and I too am experiencing the same problem with those 2 apps. It's frustrating not being able to utilize the fullness of the screen...I mean that's one of the main purposes in having a phone of its size right? I've noticed that iPhone 11 users don't have this problem and their screen is roughly the same size. I've searched for solutions but haven't found any that have addressed this issue. However, I was somewhat relieved to find this post that confirmed that it's not just me. Thanks
I am having the same issue. I also tried toggling the full screen setting on then restarting my phone and it still didn’t work. Hopefully they will provide an update that fixes it soon.