Because these are unofficial files hosted on third-party sites, users should be cautious: Fake Files
If you insist on playing actual GTA V on mobile (not via PPSSPP), here are your real options:
At least 2-3GB of free space (for the compressed 7z file and extracted ISO). Essential Tools:

Tiny Size: One square inch, easy to embed to devices.
OpenWrt: Easy to code; super stable, three years no reboot.
Low Cost: low cost, less than 1watt, unmatched performance.
Interfaces: Hardware support USB, Ethernet, SD, I2C, SPI etc.
OpenSource: Both software and hardware, totally FREE
Long Life: Keep production over 10 years, fast email support.
Because these are unofficial files hosted on third-party sites, users should be cautious: Fake Files
If you insist on playing actual GTA V on mobile (not via PPSSPP), here are your real options:
At least 2-3GB of free space (for the compressed 7z file and extracted ISO). Essential Tools: