I like this. It might make more sense than a all in one feed. Each person has a context on their own.
Discussion
And it mitigates the fact that some of the persons we are following post too much content, flooding your TL
It's also more of a chat-like interface (click on the person first to see his/her notes), which I think people are more used to these days.
It's more social - more focused on the follows.
The approach will probably reduce engagement as doom-scrolling gets more boring.
Like it, especially as a default with other viewing algorithm possibilities