Apply prioritize_username_in_ux setting to the notification menu

Currently, the site setting prioritize_username_in_ux allows administrators to display full names instead of usernames in the main UI (e.g., in the post stream and user cards). However, this setting does not appear to affect the notification menu (the bell icon).

In the notification menu, actions such as replies, likes, and system notifications still display the @usernameformat, even when full names are prioritized elsewhere on the site.

Use Case:
For communities where users are known by their real names—particularly in non-Latin script communities like Chinese—identifying users by their full name is much more natural and recognizable than by their usernames. Seeing the full name in notifications helps users quickly identify who interacted with their content.

Request:
Could the prioritize_username_in_ux setting be extended to cover the notification menu as well? This would ensure consistency across the entire UI and significantly improve the user experience for communities that rely on full names.