Believe it or not, Joy used to be in the running for the 3rd gen 'next it girl', along with Jennie and others. Joy got a rise in popularity due to her appearance in We Got Married. She got a lot of fangirls. Then SM tried to push her into acting TWICE but both flopped big time. Some time later she got buzz for her body and sexy visuals. But around 2018 her hype started to fade fast. Seulgi started taking more prominence and obviously Irene became the queen of CFs before her controversy. Now Jennie is the top it-girl along with Hwasa, Jessie, and even OMG Arin.
So what happened to Joy and why was she never able to take it to the next level? One reason might be that despite having the sexy imagine in the group, men mostly like Seulgi and Irene. And her popularity stagnated in the public. Remember, it's all those male soldiers that gave Brave Girls their second shot.