Here is a deep dive into why "Upload" S01E06 looks better in 4K and how to optimize your setup for the best possible stream. Why Episode 6 Benefits from 4K

"The dark scenes in the 'Real World' look like grey soup." Solution: This is almost always an HDR-to-SDR conversion error. If you have a 4K TV but not HDR capability, disable 4K. Yes, seriously. Watch the 1080p SDR version. It will look better than a poorly tone-mapped 4K file. For Episode 6, accurate SDR > bad HDR.

In "The Sleepover," the protagonist Nathan finds himself navigating the complexities of a "Nightly Rental" and a high-stakes gala. The visual contrast between the lush, simulated luxury of Lakeview and the gritty, crowded reality of the outside world is a hallmark of the show’s production design. Texture and Detail