Notifications issue on my iPhone

Hi there. I am curious if anyone knows about this bug or what is going on. But every once in a while, my phone decides to just not let me know of any notifications when my device is unlocked. For example, I might be watching a YouTube video and someone might text me, but I never knew that the text arrived because there was no push notification. But when I check my notification center, there it is. The only way to fix this bug is to restart my phone. I also would like to mention that I do not have Do Not Disturb or any other focus mode enabled, and I am running the latest version of iOS, which is iOS 26.5.2. Does anyone else have this bug, and is this something that can easily be fixed? I heard this was a bug within iOS 14, and I hope that is not lingering around since iOS 14.