Notification issue

Hi there, im currently using i3 wm (using fedora ofc) and would like to understand a bit more about the notification daemon, i installed dunst which auto starts on system start-up and notifications do work, various apps like spotify etc are able to send notification, thing is im not sure if my os is currently using dunst or kde built-in implementation, is there a way to know that? because in the end what im trying to do is customize notifications to be in a specific position or such, and as i understood the notify-send command purposefully doesnt allow for customization which is why i need to go through the specific daemon config file