The titles are made in stereo, listen in stereo. This is coming from the audio engineering world where the advice is to sum the track down to mono during mixing, which does have merit if you intend for your music to be played in mono like a club or venue since they can sound horrible if you don’t test for this.
People. Get a pair of headphones. Listen to the tracks. They are professionally made to work with multiple systems and listening setups. Trying to artificially boost results will only lead to detrimental effects.