Account now showing in search

So i've been searching for someone on instagram on and off for a few months. I couldn't find any accounts related to their name (there were accounts as it is a fairly generic name but i knew none of these were theirs). Anyway i've just searched again and an account has come up with a name i know they use as an account for other things with their actual name coming up associated with it. This account was made back in 2025, doesnt follow anyone and isnt followed by anyone. I am friends with this person on other social media so why has it only now just shown up to me? Is it because they weren't using it and now are, or is it just an algorithm type thing and a pure fluke it has shown up? They wouldn't have had me blocked because there would be no need or reason so i highly doubt that is why? Just curious as it's been months and i've never seen this before but it is 7 months old?