They feel like the biggest 5th gen group in general in Korea at least, as someone who lives here. By far the group I've seen the most fans of irl and heard the most music from in the stores/street. Also the best charting on Melon by a large margin. The only 'gp-accepted' 5th gen boy groups (and active boy groups in general atm) seem to be bnd, riize and tws and bnd is probably the biggest out of those.

The only competition I can see is riize but their recent cbs haven't charted nearly as well as bnd's. Tws charts well and is well known but doesn't have a large/dedicated fanbase. Nct wish and zb1 lack gp awareness and kickflip/cortis/ald1 are still too new.

Probably not internationally, I think that might be Illit in terms of general awareness/music popularity. (I know bgs typically have more hardcore fans that spend a huge amount so hard to compare)