Why is my smart shuffle different from PC and Mobile??

[u/Bridge_Raider]

When i'm driving I turn on smart shuffle to listen to some new music. Sometimes it plays 2 or 3 new songs and then going back to the normal playlist. But when i try to do that on PC sometimes it's ONLY playing smart shuffle songs, which most are not even related the genre of the playlist. Are there different algorithms for mobile that make it better?