This means BTS gets nominations in each category they are eligible for (general and pop categories).
Their quality is recognized, as usual!
"The Korean Popular Music Awards is Korea's first music-oriented awards ceremony. It is the only music awards ceremony in Korea that pays attention to albums and songs rather than singers, and awards them without boundaries between mainstream and non-mainstream, based on musical achievement rather than sales volume. It started with 1 in 2004 and marks the 18th this year."