In terms of visual design, what are the most striking differences between Fatal Error Sans and Reaper Sans?

Visually, Fatal Error Sans is characterized by glitching effects, fragmented body parts, corrupted textures, and often a color palette that is desaturated or includes unnatural, neon colors. Reaper Sans, conversely, has a more consistent skeletal appearance, often depicted with wings, a scythe, dark clothing, and a generally more macabre, death-themed aesthetic, without the overt digital corruption.