The difference between Qoboz stream vs purchased songs

I am a admittedly noob, so please forgive my ignorance. Recently, have had the pleasure of getting a Innuos pulse mini, what a game changer! I knew that with the mini you cant buy music, only stream. Using Qoboz, is there’s a difference in sq between the two? I live on a fixed income so I have to be frugal and am trying to figure out where it’s best spent. Thanks so much for any info on this subject.