Played this on PS3, PS4, PS4 Pro (ssd), PC and now PS5.
The "slightly" upgraded PS5 version is decent for players who have not played GTA5 on a half decent PC you will revel and enjoy the faster frames, upgraded graphics and SSD loadtimes for sure as for Ray tracing check out videos on YouTube ripping it's claim apart.
Definitely worth it if you are paying the upgrade price as a PS4 version owner but no new content to warrant buying this as a stand alone.
If you want to really expand on GTA5 playing on PC with mods is the way to go.
The best feature of the PS5 version is the adaptive triggers if it wasn't for that would of given 3 stars.