Not sure what you mean by incorrect as it’s not defining peeling potatoes as the goal of Zen Buddhism.
I’ve practiced it and taken part in their retreats. The instruction for cleaning and cooking service was very much to just focus on what you’re doing - like just peel the potatoes. Not thinking about peeling them. Not looking for a deeper meaning in it. Not narrating a humble-brag story about yourself piously peeling them. This quote is accurate but doesn’t make for an exciting overview of Zen philosophy or practice.
Disclaimer: I’m not an expert.
Pothos is usually fairly hardy. It’s probably acclimating to it’s new environment. Be very careful of over watering. Stick your finger deep into the soil and don’t water if it’s clearly moist. If it’s totally dry, take it to the shower, get it totally wet but let all the excess water drain. If you haven’t repotted it in two years, you may want to do that and check for root rot while you’re at it.