The PS5 version of GTA Online does not allow cross play with the PS4 version : r/PlayStationPlus
Grand Theft Auto V/Editions | GTA Wiki | Fandom
PlayStation on Twitter: "Last chance to transfer GTA Online characters & progress from PS3/360 to PS4! Ends 3/6. PS4 version is on sale (US): https://t.co/cmqm8cfolq https://t.co/QhQDRCTqXB" / Twitter
GTA 5 account transfer: Can I transfer GTA Online character to another console?