Portable systems with LCD displays existed, and they used the same pixel art techniques as on CRTs. VGA PC games used line-doubled modes on high resolution moni

Portable systems with LCD displays existed, and they used the same pixel art techniques as on CRTs. VGA PC games used line-doubled modes on high resolution monitors, where the individual pixels were clearly visible. Some artists did intend their art to be blurred, but this is not universally true, and even if an artist intended it, it doesn't mean blurring is the best way to view their art. There are games where checkerboard patterns of individual pixels are used to represent fine detail, e.g. rings on chainmail armor, or keys on a typewriter. The wide variety of art styles and personal preferences makes it impossible to definitely state any scaling technique is best.