@Gargron If you wanted to break notifications off into trusted and untrusted, perhaps just have an icon next to them or something. At least for me, I don't get enough interactions on my posts to warrant having two separate notifications tabs, it would just add unnecessary complexity to the interface.
I guess it also depends on how a user is identified as being "trusted". Is that people you follow? People from trusted Mastodon instances?
Making the feature optional/toggle-able would be nice.