I never had time or headspace to tinker with my #anbernic but it came with some preloaded games. I played a few, just to get the feel of it. I didn't own many consoles when I was young, so many old games are new to me. I found Fire Emblem 4 there and started playing it. It works fine, better than my Awakening clunky Samsung S22 edition lol. Ah, and rumors say #fireemblem4 will be remastered. I'll definitely get that. I'm sure they will do something with Awakening too.
#ArkOS (and possibly #jelos) support the #PPSSPP emulator for playing #PSP. PPSSPP is probably the emulator you have installed on the Android side.
In ArkOS, you would want to set the emulator to the "standalone" version of PPSSPP for better performance - press START, then "EMULATOR SETTINGS -> Sony PlayStation Portable -> EMULATOR -> STANDALONE".