evidence?
here's recent stuff:
seungyoon was on voice s4 just last month (voice s2 is the 30th most viewed cable network drama, voice s3 is 49th despite being on ocn instead of jtbc or tvn) he was also in prison playbook which is the 14th most viewed drama, so despite having suporting roles, he's been in proper, popular dramas, not just idol dramas.
mino is a producer on smtm 10 this year (we all know how big smtm is and how many songs from the show chart each year), and he'd been a cast member of new journey to the west (with kang hodong and lee soogeun) since 2017 (the ratings for the show are consistently above 5% despite being pay to watch), he's basically one of the biggest rappers in korean rn
seunghoon and jinwoo are in the military rn but before going, jinwoo was in wizard of nowhere (8% rating at its highest which is comparable to running man in 2020-21) and seunghoon in law of the jungle (avg 9% ratings)
so you've probably never heard of these shows, but theyre pretty popular in korea at least.
really really is at 519 on melon, and take (mino) at 839 if that counts too