https://marco.org/2009/09/11/audio-hijack-pro-makes-the-beatles-new
Audio Hijack Pro makes the Beatles’ new stereo-mixed remasters listenable. (Tip: Get the mono edition for the albums that were originally mono.)
I’m sure, at one time, there was a good reason to put all of the instruments in the left channel and all of the vocals in the right channel. 2009 is not that time.