Newsboat + miniflux is an excellent combination if you're CLI-addicted but want to access feeds from multiple devices.
For all the (justifiable) concern about the death of RSS, we have a glut of excellent options for consuming content through RSS. But I'm still sour about the Reeder redesign. At least the dev was transparent about building the tool he wanted to use but, ugh, it's barely in the same market as the others now.
I never upgraded to Reeder 4, stuck with 3 until I found (rediscovered?) NetNewsWire and connected it to my FreshRSS instance.