Any website or video promising such a file is either lying or distributing malware. The smallest authentic compressed versions of GTA 5 still require at least 35 GB of download space (and ~70 GB after installation).
Recently, searches for a “GTA 5 Setup Highly Compressed 200MB for PC” have spiked. This article explains what such a file actually is, whether it’s real, and what risks you should be aware of. Gta 5 Setup Highly Compressed 200mb For Pc
If you ignore the warning above and search for this, here are the three most likely scenarios you will encounter. Any website or video promising such a file