So... Algorithm does not exclusively mean something that determines what you see in social media
An algorithm is just a series of steps to perform a task. Usually the term is used to mean a task that is performed more than once or repeatedly. It's usually used in a programming or computer science context.
So when people say "algorithm" to only mean an algorithm that decides what to show the user on social media, they are using the word wrong.
I'm only bringing this up because I have seen this mistake more than once and it's starting to drive me nuts haha
End rant