For me, debut songs from my bias grps(excluding sub-units n solo members) aren't all tat except maybe ITNW. Debut song qua debut tat is/are the best:
even tho mostly the b-side from debut is more my favorite/i like both. Examples:
Rosé-On The Ground/Gone
Wendy-Like Water, Best Friend, When This Rain Stops
RV|IS-Monster/Naughty
SNSD|OH!GG-Li'l Touch/Fermata
But it majorly could be cos each debut i was around n invested n its still the only release from tat sub-unit/solo member, if not i might not be as strongly emotionally be connected to these debuts.
Im looking forward now to solo debuts (eventually, if ever) from Gfriend, Everglow, GI-DLE n Winter however long it may take em. (Forgot to mention Yuri SNSD solo debut The First Scene/"빠져가 (Into You)"/"꿈 (Illusion)" but not most of the others qua debuts).