Probably because SD screens are designed as vertical screens and are used horizontally. If you ever boot into bios or check screen orientation in display orientation you’ll see signs that hints to this.

Probably not anytime soon. I ordered an Ayn Odin 2 Pro for my compact emu needs.

Besides using it at home, I’ve taken mine out of the house a few times for flights and waiting rooms, but tbh the device is a bit too large for some public places. I love the flexibility of how much it can do, and have no problems with using it in public, but I do wish it was a bit smaller.