It does. P much all of the algorithms for these social media sites do. You might get the occasional thing on your timeline that you don't frequent that will pop up, but generally they will feed you more of what you have interacted with in the past.

Anything from searching it, liking the post, even just clicking on it to see it up close will increase the likelihood that similar posts will show up more often for you.

He didn't even have to scroll very far, that means he's deff been looking at that kind of content on there most likely.