You mean like integrating the PC in the screen as per Apple? (Or a random Smart TV) Or the Apple Trashcan iMac? Yeston Cute Pet PC case? (UwU) Weird "gamer" case shapes? Translucent acrylic covered wall hanger PCs? There are also rack PCs you could put into a case of choice if you need it compact yet potent. Or if you need it smaller, micro-ITX.

Laser projection keyboards are terrible. I wouldn't wish that thing on my worst enemy. Even a membrane keyboard of ZX Spectrum is better, or a glass touchscreen of an ATM.