Ok, I got annoyed with people saying "they did this as a rookie group" or " they did this after 1 week of debut", etc...
If you are coming from big 4 companies, you already gather a lot of casual stans or even company stan from the beginning.
Look at NMIXX, even if they failed with their debut, they still managed to get 400k physical sales.
Look at Newjeans, when you able to use company's privileges' correctly, you explode in popularity.