On the wallpaper, as you can see, two main characters from Genshin impact are depicted. This is Lumin (Although you can also play as Itera), as well as Paymon, her faithful companion from this magical world called Teiwatt.
Now it (Pai) can really be called canned food - after all, Lumin just fries it in this cauldron. Although in part it may seem very creepy.