In terms of CL and Hyolyn (besides company sabotage) their a perfect example of how hard it is to regain or maintain attention as an “older” kpop idol without the support of an established company and after the initial peak.
Somi is under YG lol. The BP strategy probably won’t work with a soloist.
Chungha is doing perfectly fine. She was listed as #3 in female soloist & overall solo acts by Industry insiders in 2020. She just doesn’t have the fanfare from Ifans because she wasn’t/in a top 3rd GG and her songs don’t always top the music charts that I-fans are obsessed with.
Hwasa had 4years as one of the top 3rd Gen GG and then the 1,2,3, punch of Give It To Me, Twit and Maria.