Samsung seems to have exited the 4K Blu-ray market in the US citing a niche market and current domination of Sony and Panasonic. Samsung became the second company after OPPO to stop making both 4K and FHD Blu-ray players coming in the wake of increased penetration of online streaming services and HDR format incompatibilities between the industry's Dolby Vision and Samsung's HDR10+
https://www.notebookcheck.net/Samsung-joins-OPPO-in-bidding-adieu-to-Blu-ray.410487.0.html