No, PS5 Backwards Compatibility with PS3, PS2, and PS1 Games Has Not Been Confirmed | Push Square
NEW PS4/PS3/PS2/PS1 Backwards Compatibility Update for the PS5! Sony PSN Code Restriction at Retail - YouTube
No PlayStation 5 backwards compatibility for PS1, PS2, and PS3 titles and very fake-looking hefty PS5 retail box gets overshadowed by Miles Morales concept design - NotebookCheck.net News
PS5 Rumored To Have Backwards Compatibility For PS1, PS2, PS3, and PS4
PS3 games on PS5 Store could signal backward compatibility, or a bug
Can you Play PS3 Games on PS5 - ElectronicsHub
What if the PS5 Could Play Games from Every PlayStation Console? - Talking Point | Push Square
Backwards Compatibility - PlayStation 5 Wiki Guide - IGN
PS5 Backwards Compatibility: No Support For PS3, PS2, Or PS1 Games, Says Ubisoft - GameSpot
Recently there's an influx of “PS5 backwards compatible” articles on google reporting it will play ps1 through ps4 titles. If it's true, much respect to Sony. : r/PS3
Why Native PS3 Gameplay on Newer PlayStation Consoles is Difficult