Once a group has fallen into a period of inactivity for at least a year, then one can start analyzing when their peak was on the charts.
Releasing songs that underperform doesn't stop a group from releasing songs that become hits.
BTS didn't have a real chart-topper until FIRE, almost 3 years into debut.
BP released KTL and then HYLT came after.
RV released RBB, Zimzalabim, + Umpahx2 then released Psycho.
Mamamoo had Wind Flower and gogobebe, then released HIP.
TWICE released a weaker song in Signal, then followed that up with 6 hits in a row. Even now, there seems to be hype for Alcohol-Free after 3 underperformances.
Do you get my point?