It sounds like you're referring to a review for ("And Then There Were Three") in 4K .
Otherwise, general consensus: You S03E01 in 4K looks very good for a streaming drama (Netflix), but it's not a "reference quality" disc (there is no physical 4K release) — so reviews often compare the quality, noting bitrate limitations in dark scenes. you s03e01 4k
While I can't see the specific review you're looking at, here's why that review might be particularly interesting — and what viewers typically highlight about that episode in 4K: It sounds like you're referring to a review