A lot of this "configuration" type stuff you have to do with the web interface, which isn't bad since you only do it once and then you can use the app daily after that and the configuration options will follow over to it.
Also, you probably will find yourself browsing All less and less, if you enjoy using the categories of communities, Topic Feeds that are user-customizeable and shareable. Lemmy mostly forces you into those by providing little alternative (just Subscribed and Local), but PieFed opens up while new vistas.
e.g. for low-volume communities you can ask for a notification to be sent upon entry new post, and for high-volume ones you can even fully unsubscribe, which still leaves the community just a click away. e.g. I unsubscribed from most news and politics communities to lessen the amount that they flood my feed with, but I can click News and Politics and they are all right there waiting for me in that other Feed (unless I fully block them, of course).
It's a whole new set of workflows that you can play with, to customize how you would like to receive your content!! Full disclosure: whole those are present in the latest PieFed API, I do not use 3rd party apps so don't keep up with the state of which ones have which features, and it's possible that most apps haven't updated themselves yet to include all of the above features. Still, it's good to know what options you have available, so that you don't feel stuck when something doesn't work the way you hoped!:-)
We have so chosen to not be ready for what is to come.