Tilting the keyboard allows players to align their elbows with the desk, enhancing focus and immersion.

Yeah, that’s not how ergonomics work.

They’ve got it wrong about keyboard tilt. You want a neutral position for your wrists https://www.unh.edu/research/ergonomics/keyboard-ergonomics.

I can understand some level of tiling the keyboard, because then your left wrist can be holding straight. But the images and videos are a bit too extreme. I personally just move the keyboard a little bit to the left side on the desk and do not tilt. I tried to illustrate this with noob art