Mounts are by size of device not pixels.
Check the size in inches or cm, and convert as needed. Hope that helps answer your question.
All tv’s have standard backplane mounting holes, although screw depths and pitches vary, mounts come with lots of optional screws and washers for adaptability, and 90% of the time its all in the box, once in a while, I have to go looking for a proper screw at lowe’s.