Been playing for about 45 minutes in the corpo lifepath (dumps you straight in the city). Had two patches on Steam, one of 3.5Gb, then the decryption where you can hear your CPU fans ramp up and then another 3.8Gb patch.
This is one of the worst implementations of DLSS I've seen. Absolutely terrible mirror in the bathroom which wouldn't be so bad if you just walked passed but you have to stare at it for a minute in a cutscene and it is very jarring.
Quite a few lights and billboards flicke, jagged edges everywhere. It clearly cannot cope even with Quality mode.
RT is just a performance killer. With DLSS Quality on at 1440p, one scene in a nightclub from 135fps to 68fps by enabling ultra RT.
After trying out a few settings, I'm going to be playing at 1440p native with no RT or DLSS. Much clearer in motion and still a very good looking game.