I have reduced my usage of facebook considerably. I keep the app on my phone, but only check it once or so a day. I can't use it on my desktop, as I have blocked all of its domains (including tracking domains) in my hosts file. As soon as I blocked tracking and reduced my usage, I noticed that I started to get push notifications about things that I wasn't directly related to, but facebook thought I would be interested in (previously I only got notifications about comments to my own posts and replies). This also corresponded with around the timing of Zuckerberg's congressional testimony, so I'm not sure if this more aggressive notification strategy has happened for everybody, or just those of us that have actively disengaged from the platform.
