I remember you saying that an played around with that UI-wise but couldn't find sth that pleased me (yet). And then there's my own preference of landing on one particular feed that I picked as my top feed. 😉
Find a user that spends most of their time on What'sApp and you will see the "multiple feeds as home" idea. People create groups for everything... family, work, marketplace, fun, porn, etc.. It's all one mega list. They pin the important stuff to the top and the rest is by date.
That's a great benchmark!