Yeah I have a couple of recent Samsung OLEDs and they're fine without an internet connection despite reports that they wouldn't be. If I press one of the annoying streaming service buttons on the remote it'll give me a setup popup which needs to be dismissed, otherwise they work fine, albeit without any built in streaming support.
I'd read reports that Q-Symphony (audio from the TV speakers and soundbar simultaneously) wouldn't work, but it does.
I stuck an OSMC (https://osmc.tv/) box to the back of both of them so they can play stuff from my NAS. They're not the cheapest solution and I realise Kodi/XBMC on which they're based isn't everyone's jam (I grew up with XBMC on an Xbox so it is very much mine) - but they play everything, have wifi, HDMI-CEC, integrated RF remote, and work out of the box.
Model numbers if anyone cares: Samsung QE65S95C, Samsung QE77S95F. I believe S95, S90 and S85 (at least up to F) are all very similar so they should all work but ofc ymmv.
Why can't you just run the Kodi app directly on the TV?
This OSMC box looks interesting, but does it allow to run arbitrary programs like a plain Linux box? What I have in mind here are things such as VacuumTube (YoutubeTV front end), a Web browser to stream from various online sources, etc. I found KODI (as running on Linux) far too restrictive when it comes to streaming from the Internet, and the add ons to be terrible. (In particular the YouTube add-on requires an API key registered with Google, which makes it a far worse proposition than using VacuumTube anonymously.)