You will need a BitTorrent client (e.g., qBittorrent) to download the compressed files. Ensure Space:

Most "10GB compressed" versions of GTA V (which is normally ~100GB) are either:

The allure of a download is tempting, especially for those with slow internet or limited hard drive space. However, physics and data compression have limits. A game of this magnitude simply cannot exist in that size.

Rockstar does not offer official “low-spec” downloads, but Steam and Epic Games allow you to downloads indefinitely. You can download 10GB per night over 10 nights. No compression needed.

To shrink a 100GB+ game down to 10GB, significant trade-offs are made [12]: Visual Degradation

Common "highly compressed" 10GB downloads found on various websites are often unreliable or dangerous:

Respect your time. Respect your hardware. Don’t chase the 10GB dragon.