Similarly, on Apple Music with some tracks I can hear a difference when switching between AAC and lossless modes. In fact the reason I know this is because one

Similarly, on Apple Music with some tracks I can hear a difference when switching between AAC and lossless modes. In fact the reason I know this is because one day when listening to music, one particular track sounded unusually bad and switching on lossless fixed it. Genre likely has some bearing on whether a person can hear the difference or not, with some genres being generally being more compressed for example which will reduce the gap between formats. It would also make sense that each codec has genres it’s more or less suited for.