Yes, at least for their generation. I think it's a little more saturated now then it used to be, and Kpop isn't as big in Korea itself, but they are still a Top 3-5 group in Korea right now.
Karina is widely considered as one of the 4th gen visual holy trinity with Wonyoung and Sullyoon, and right now is the 6th most followed female idol on insta, only behind BP and IU.
Winter is in the top 30, and Ningning and Giselle are both in the top 50. This includes all 2nd and 3rd gen idols too. Take them out and Winter would be 4th in 4th gen behind Karina, Wonyoung, and Sakura. Ning2 and Giselle would be 9 and 11.