Not Receiving Google Voice, Wechat and Whatsapp Notifications IPhone

So recently I noticed any notifications I received from either of these programs don't show up till much later. Either it shows a notification hours later or you have to actually open the program and then the messages or calls are shown. Does anyone know how to fix this or why this is the case? IPhone 13 Mini.


Previously whenever a message or call, notifications show up immediately. I don't recall making any changes to notifications for either.


I received text and calls from WeChat and Google voice and only know about it when I open the app. I am on the latest IOS but not sure why this is happening?