Computex week has officially kicked off, and Asus has debuted the ROG Xbox Ally X20 at the annual expo. While the inner hardware remains mostly the same as last year’s ROG Xbox Ally, the big difference with this model is its new OLED screen, a body constructed from a translucent plastic shell, GuliKit TMR joysticks that are drift-resistant, an eight-direction D-pad, and more tweaks under the hood. For the screen, Asus has installed a 7.4-inch 120Hz OLED 1080p display. It can reach 1,400 nits…