I wish the app would manage to adjust the display refresh rate to match the content's framerate in fullscreen. Just recently I tried to watch a highly rated, cinematic sensation like Roma on my projector and was surprised that I had to guess and set the proper output settings manually.
Setting the proper refresh rate is a solved problem for any decent software or bluray player but it seems to be completely ignored in most Netflix clients on countless different devices. (I hear the Apple TV does this well though)
I hear you! Also, until I figured out to engage Windows' tablet mode from the Win+A menu, when on my primary computer with a curved 21:9 I'd get a wide aspect movie squeezed into the 16:9 portion of the screen - a tiny slit of image surrounded by black frames. Ugh.
I don't have any experience with those wide screens and how they handle movies but I'd imagine they are very much suited for that kind of content if the player handles it properly.
Concerning the frame rate issue, I was really surprised that most people just don't care or notice at all. After some research it turns out that only about a dozen of Netflix clients on various bluray players, streaming boxes and TVs handle proper refresh rate switching. If your device's Netflix client supports it is apparently pure guess work and anything but certain. Instead they just seem to rely on the display's frame rate interpolation algorithms to fix an issue that shouldn't be there in the first place.
I can live with that for mindless, forgettable content, but if you're trying to sell your service as the future of cinema and put effort into high prestige projects like "Roma" or "The Other Side Of The Wind" maybe they should get the basics right in order to offer a worthwhile big screen experience.
Yep 34" 21:9 screens are rather ideal for watching movies, when at my desk in its sweetspot with headphones. Not quite as comfortable as couch and the Samsung 65" big screen for multiple people though!
And then: I read you, again. The attention to proper detail just isn't there - unless you can wrap it up with a hot buzzword such as _HDR_!