Is the S90H a good TV for a bright living room?

Yes. Its QD-OLED panel is among the brighter OLEDs, so it holds contrast better than older OLEDs in daylight. A glossy screen still reflects lamps and windows, so placement matters.

Does it support Dolby Vision?

No. Samsung supports HDR10+ instead, so Dolby Vision content from some streaming services plays in standard HDR. The picture is still strong, but it is a real gap against LG OLEDs.

Is the soundbar and subwoofer worth having?

For most buyers, yes. The bundle adds bass and dialogue clarity that slim TVs cannot match, and it saves buying separates. Audiophiles will still want a dedicated surround system.

Should I worry about OLED burn-in?

Burn-in is possible with static logos, news tickers or game HUDs left on for hours daily. Vary content and use the TV's screen-care features; most households will not see a problem.

How does it compare with LG's C-series OLED?

The Samsung is brighter and has a stronger anti-glare coating, while LG adds Dolby Vision and a similar port count. Choose Samsung for brightness, LG for Dolby Vision support.