There's no such thing as a pro motion display. It's just a 120hz display pro motion is just a marketing term.
These displays will be designed by and built by Samsung
LTPO is an Apple-developed technology (for which it holds the patents,) Samsung has also been working on similar display technology that won’t require it to pay royalties to one of its main rivals. Samsung’s version is known as hybrid-oxide and polycrystalline silicon (HOP.)
the more you know