I only stream content so maybe smoother on the lg ?
The Samsung S90C is excellent for watching TV shows in a bright room. It has good SDR peak brightness and incredible reflection handling, so it can easily overcome glare in a bright room. It has a truly exceptional viewing angle, which is great for a wide seating area or for moving around the TV while watching it, as the image remains consistent. It also upscales lower-resolution content well, and the smart interface has a great selection of streaming apps, so you're sure to find your favorite shows. Unfortunately, its low-quality content smoothing is only adequate, so low-resolution or low-bitrate TV shows will have macro-blocking, even if upscaled well.
The LG C3 is an excellent TV for watching TV shows. It has fantastic reflection handling, and combined with its very good peak brightness in SDR, it can handle bright rooms or rooms with lots of glare. Its viewing angle is superb, so the image remains consistent even when viewing the TV entirely from the side. If a group is sitting around the TV to watch the latest episode of their favorite show, they'll have a great viewing experience no matter where they're sitting. The TV also has very good sharpness processing, so lower-resolution content is upscaled well, and when combined with the panel's excellent low-quality content smoothing, your shows will still look great.
They don’t explicitly state what low-quality content is. But I’m assuming that’s probably something like low bitrate hd content or very old shows that have not been remastered.
What do you stream and what’s your internet speed?