No app notifications sounds and vibration

Hello all,

I am recently noticing multiple apps on my iphone 11 pro that are not playing a sound or a vibration when the notification comes in. The notification arrives on my lock screen and in notification center as well as forwards to my apple watch series 6 but never play a sound or vibrate. i intentionally left my iphone screen on and waited for one of the suspect apps to send me a notification and sure enough i see the notification banner come up but no sound or vibration. Of course I went in to the notification settings and double checked that everything was on the way it should be and all notifications are set up the way they should be, the way that i have had them set up the whole time, nothing has changed. The suspect apps that i have found so far are Amazon shopping app, the patch news app, zillow app, cbs new app, snapchat (when someone adds to their story only, i get notification sound if someone snaps me directly). I don't where the problem lies, i rebooted the iphone (hard and soft), rebooted the apple watch (hard and soft), deleted the suspect apps and reinstalled, still nothing. Is this something that is a problem with the operating system or this a problem with the apps themselves? I really need this resolved, anyone else seeing this issue?

[Re-Titled by Moderator]