I found out, both online and even in settings, badges go away when you swipe...Guess I'll have to resort to nova or some other launcher.
Some sources:
Source 1:
DudeThatsErin It goes by what is in your status bar. If you swipe them away the number will disappear.
dark_sage94 They notification bar disappears for me once I read one text
LoyalRoyal18 Nova launcher does what you want, I believe.
https://www.reddit.com/r/GalaxyS9/comments/9e66n7/notifications_badge_on_icon_disappears_even/
Source 2:
Eh can't find anymore right now