Technically, yes, but it is more of a than a fun way to play . It highlights that most of a modern game's "weight" comes from high-resolution art and sound rather than the actual code that makes the game run . Warning: Scams and "Highly Compressed" Files
They deleted almost all missions, audio files, textures, and store interiors . gta-5-game-on-pc-highly-compressed-gameboy
If you are looking for a "highly compressed" version to download on a low-end PC, be extremely careful. Technically, yes, but it is more of a than a fun way to play
Many sites claiming to offer GTA 5 in tiny sizes (like 500MB or 1GB) are often fake and contain viruses or "surveys" that never give you a working game . gta-5-game-on-pc-highly-compressed-gameboy