I don't think the average phone provider in Cambodia will worry too much about the list revenue from not supporting a particular variant of iPhone 14.
[0]https://www.statista.com/statistics/930856/cambodia-mobile-o...
Everyone back then had third-hand used stuff that I suspect was mostly ex-eWaste. Smartphones were not ubiquitous.
I see the graph but don't believe it, especially given how much of their economy is tourism.