And there are worse than that of course - I have only gone from Siem Reap to Angkor Wat. - but of course, because of tourism, that stretch was fineI’ve been on worse-maintained roads than US neighborhood roads and motorways. Usually connecting Siem Reap and Phnom Penh.
the really bad drive is from Kashmir to Delhi, where you drive playing a continuous game of chicken through the mountains and there is a straight fall with no guard rails into the deep crevice below - I ran into mudslides and everything. I think now the roads are better, but a few decades ago, it was horrifically bad