The document was dated September 2023, so not that long ago.
Biden visited Vietnam at the same time.
This document is also dated September 2023.
https://www.vietnam-briefing.com/news/us-president-biden-vietnam-visit-2023-outcomes.html/
"Biden’s business delegation also closed several deals for cooperation and investment in Vietnam impacting sectors like AI, cloud computing, semiconductors, and new energy."
If Vietnam was so pro-China, why would the USA be investing in Vietnam?
Apple has invested in Vietnam, relocating 11 factories.
https://vir.com.vn/apple-relocates-11-manufacturing-units-to-vietnam-104942.html
Also, Intel. $4 billion is no small investment.
"Meanwhile, Intel has initiated the expansion of its Phase 2 chip verification plant in Ho Chi Minh City, involving an investment amounting to a staggering $4 billion,” said Vuong."
Vietnam's economy is one of the fast growing in Asia. Dated March 2024.
https://www.reuters.com/world/asia-pacific/vietnam-reports-q1-gdp-growth-566-2024-03-29/