Here is a list of Emulators that work with the Quests 2 and 3
Quest 2
Retro Arch
Quest 3
AetherSX2 - PlayStation 2
PPSSPP - PSP
Dolphin - Gamecube
RetroArch -
Citra - 3DS
I no longer have Quest 2 so if anyone can tell me what works with it then that would be great