https://newspunch.com/pentagon-online-surveillance-facebook/
"Social media" is a re-branding of "mass surveillance". In the same way "Cookies" are "Trackers".
Facebook, may in fact be, a US gov surveillance project straight out of the pentagon.

Social media is designed to be addictive and to keep you using it:
Facebook feeds you outrageous news in your feed because rage keeps you glued to the screen.
Gab functions in exactly the same way, it is a nest of republicans seething about the last bad thing democrats have done.
Youtube had a star system, this was a fairly good and useful rating system. This was replaced with a numberical system of likes and dislikes, the dislikes are rumoured to have their days numbered.
With facebook, there is no opposite of the like; There is only "like" and "this makes me angry".
Most social media sues an infinite scroll feed of information, you keep scrolling down looking for one bit of dopamine, surrounded by uninteresting drivel. This is more effective than to constantly serve you quality, as it would burn out your dopamine receptors.

This addictivenes is by design in both social media and entertainment in general.
In entertainment the examples are clearer.
In porn, Pornhub quite readily admits that they are feeding your porn addiction.
In gaming, lootboxes are designed around the same principles of casinos. Android games are even worse, as they are designed from the ground up around perpetual play and revenue streams.
Old games are cool tho.