No, but I wonder if that's even necessary if:
1. You have less need of spinning up different npubs because you can partition your content consumption and publication across community. As in: I don't need to spin up a different npub for my posts about coding, design or music. I just post I'm different communities.
2. If you have seamless profile switching built-in. If I spin up a different npub, it's going to be for a company, organisation, music band, ... and I'd like to be able to not have all those notifications in my face over the weekend by default.
But, If you do really want everything at one glance, I'm not designing for that no. I'm designing for easy/fast access and management. That means having notifications and necessary sctions in the same app. That in turn means splitting things by noub by default.