Notification shows Username

Hey,

In the push notification, I see the name of the person who wrote the message.
Where can i disable that? For DSGVO i want that i only see “you have an message” or somthing in the push notification.


When the setting is off i see the username and when its on i see given name and family name.
I just want to see “You have an message” or something. Is that possible?