IT DOESN'T TURN ON AT ALL ANYMORE!
excuse the stretching, I had to downscale this video to qcif via FFmpeg, and it disregarded the video being in 16:9 in turning it into a gif. It has not left my desk since the top screen broke, let alone come into contact with water.
Additionally, my older launch-model New 2DS XL is right next to it, powered on, both screens working, and every shoulder button nonfunctional. I might try to sell these to obtain more money and order a higher-end Steam Deck as I haven't been able to place an order yet due to circumstances outside of my control. But yea, it's dead jim.