If you own the game on a PS4 or PS5, you can use the official PS Remote Play app to stream it directly to your Android phone over Wi-Fi.
PPSSPP only emulates PSP (PlayStation Portable) games. The last Uncharted game on PSP was:
Uncharted 4: A Thief's End is not available as a PPSSPP ISO for Android because the emulator only supports PlayStation Portable (PSP) games. Websites offering such downloads are often malicious, and the title is a high-end PlayStation 4/5 game. For more details, visit Wikipedia . PPSSPP - PSP emulator - App Store - Apple
