So far, not much. Gaza is a good place to start. China wants more influence in the Middle East, and already owns or operates a large number of ports outside China.[1] Israel blockades the existing ports of Gaza. A China-run port in Gaza, protected by the PLAN, is a possibility.
It also assumes that the _US_ would allow a China-run port in Israel, which is so unlikely it might as well be impossible. Israel is a nuclear weapons state and such a close US ally that they basically have their own F-35 fighter jet variant.
"At least two-thirds of the world’s top 50 container ports are owned by the Chinese or supported by Chinese investments, up from roughly 20% a decade ago."[1]
[1] https://www.washingtonpost.com/world/interactive/2023/china-...