I've never quite understood the draw of a feature like this, other than for a minute it can be cool to show someone one phone charging another, if they've never seen it. A battery of any sort, MagSafe or other, does an immensely better job at this task. I already have to charge my 15 Pro twice a day, a dumb parlor trick feature like this should be left to Samsung.
I could see it being useful for recharging the Airpods case on the go.
If it's enabled, and you never use it, why do you care? Just enable it and let people use, or not use it, as they wish.