Honestly speaking a lot of 4th generation groups are pretty meh compared to the previous generations.
We’re like 3 years in and it’s nowhere near as popping as 3rd gen was by this time.
2015 for 3rd gen we had EXO who were monsters in the industry snatching daesangs left and right. Gfriend who were starting to find success and slowly blowing up in Korea. BTS who were also making waves in Korea (and internationally) and getting noticed by the general public. Red Velvet who scored a triple crown with ICC, and the monster rookie debut of Twice.
However even now we have yet to have a 4th gen group win a daesang, chart decently in korea (with the exceptions of itzy and aespa), or slowly start to surpass their seniors.
Now it may still be early and things can change quickly but with the way things are going, the only accomplishments 4th gen will have is maybe youtube views and album sales.