I preordered a rtx 3090 asus ek edition from shopblt last year, moving ETA is now end of august, might just cancel and wait it out for the 4000 series announcements. I did upgrade my laptop though and splurged for the rtx 3080 16gb edition OLED (razer 15 advanced), and have been very happy with...
I will say one of the downsides of 8k for desktop / photo / video work is you instantly see how low res a 24mp 6k photo sensor is. With that being said 8k raw video off an EOS R5 looks outstanding on it.