I’ve got a Hisense 65U6FUA and can’t turn off motion smoothing on 4k content. Which sucks, but also this TV’s motion smoothing is BAD, it stutters and drops frames like an overloaded PC game with each scene change and whenever things move slowly onscreen. I’ve got all the image processing options (across multiple menus, of course) turned off.
It’s great if you like exploration, resource management, and base building.