They spend a lot of effort trying to get good at predicting user preferences, through modeling of personality, behaviour patterns and more. You can find out qu

They spend a lot of effort trying to get good at predicting user preferences, through modeling of personality, behaviour patterns and more. You can find out quite a lot in their blogs and publications: https://research.atspotify.com/2022/02/modeling-users-according-to-their-slow-and-fast-moving-interests/ https://research.atspotify.com/2022/02/modeling-users-accord... https://research.atspotify.com/user-modeling/ https://research.atspotify.com/user-modeling/