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.
No I didn't find other ways, desktop is the only gateway for me even after maybe 6 years. I am generally not a very addictive personality generally (at least compared to many peers), don't have mental ticks, insecurities or mental issues that I feel I need to feed by instant dopamine kicks.
But it still saved me a lot of time in long run (and some phone battery too). I don't go to FB much, don't use instagram, tiktoks, tweeter and so on, and happy with that. Quality of actual real life and all that.
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.
Enabling a second profile on my android phone and putting Facebook in there instead of in the browser on my primary profile led to an ~90% reduction on the time I spend on Facebook.
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...