Are twice bigger now or less popular? 128
Less popular (84) 66%
Bigger (44) 34%
So they clearly aren't charting the same or having general trends in Korea the same as before and they're no longer the number physical seller for a single album.
That being said, internationally they've gotten bigger and bigger than ever, their album sales and YT views have gotten more so they likely earn more money than before.
I feel like Twice have gotten bigger overall i think international popularity brings more money than melon anyways.