I feel this topic so deep. YouTube guitarist are always doing their videos in stereo, and yeah, it sounds nice, but I make all my presets in mono, for a few reasons.
One, saving space on the mixer, just one xlr and done. Two, a lot of venue sound guys are going to laugh, slap your guitar on one mono, and call it good. Three, something about guys that play live in stereo seems very, um, "oh look at my fancy rig, I'm going to need TWO inputs". At the end of the day, these little differences don't matter in the middle of a set when the full PA is blasting and the band is rocking out. In the headphones or the car yes you can really enjoy that, but live mid-song, nah.
My 2 cents.