If you see a jailbreak for the latest version then it is probably fake or some kind of survey. Sony has recently released v6.50 firmware for PlayStation 4 but currently, v6.20 and below can be hacked or exploited. The first thing that you must know is that jailbreaks are never made available for the latest firmware.
UP TO 90% OFF ON LATEST PS4/PS5 GAMES – VISIT CDKEYS TO ENJOY NEW SALE Prerequisites: There are other exploits available like PS4 Remote Play which allows you to remotely screen and play games on your smartphone and PC.
Jailbreaking the PlayStation is not the only way to add more functionality. To make it more simple, it allows you to do heaps of fun stuff. It even allows you to back up your games in the PS4-HDD or External HDD-3.0. In PS4 jailbreaking removes the restrictions by Sony and allows the user to install games and mods from USB.