The only game in the series ever released for a handheld system is Uncharted: Golden Abyss , which was a PlayStation Vita exclusive
Not yet, and not via PPSSPP.
: PPSSPP emulates the MIPS-based architecture of the PSP. Uncharted 4 runs on the much more powerful x86_64 architecture of the PS4/PS5 and PC. uncharted 4 ppsspp iso download for android exclusive