Let’s clarify the numbering:

Dolphin is designed specifically to emulate consoles. GTA V was never released for these platforms; it was first released on PlayStation 3 and Xbox 360, followed by later releases on PC and modern consoles. Therefore, no genuine "ISO" file of GTA V exists that Dolphin could read or run. Reliable Ways to Play GTA V

You will need a flagship Android device with a high-end chipset (e.g., Snapdragon 8 Gen 2 or newer) and at least 8GB to 12GB of RAM. 2. Cloud Gaming