Earlier quoted context omitted.
If you get addicted to these feeds, you'll just find other ways to them once they're off your phone. I take a hybrid approach - keep uninstalled by default most of the time, engage a browser extension for web to keep me in place, and failing all that use an app like this as well.
I actively log out of them on my main device and use a second device to access them that I like to use substantially less. The device sits next to me every day, and is accessible at any time. It has substantially reduced my usage.
However, I do have to check it from time to time for one of my jobs (to monitor our Page and events, and respond to customers), and the occasions when I switch to the second profile can still hook me for 20 minutes of scrolling...