For me it was:

- most posts I saw on Facebook were from my friends

- Instagram was full of photos from my friends

- on Twitter I mostly saw tweets from people I knew in person or open source contributors I followed

Then my Facebook feed started having more and more „suggestions” then pages and groups, more brands than people. Instagram started showing me influencers and over time moved from photos to videos to counter TikTok. Twitter also started showing algorithmic feeds with more and more „suggested” people rather than those I followed. I stopped replying, commenting, eventually posting, social media turned into consumption-heavy media