Amazon.com: EJGAME Controller Adapter Converter Compatible with PS5/PS4/PS3/Switch/PC,Makes PS5/PS4/Xbox/Switch Joy Con Controllers Compatible with Your Switch/PS5/PS4 Console : Video Games
PS3 Emulation Allegedly in Production for PS5 | Push Square
PS3 games have started appearing on the PS5 store | VGC
How will PS3 games work on the PS5? All you need to know