how much of these developments were greenlit by government officials who are now refusing to foot the bills?

By that logic, most U.S real estate companies like Blackrock and Freddie Mae would be greenlit, could you be more specific...

If we just mean which ones were state-owned (because "privatized gains, privatized losses" as one said), not much

According to even "China collapser" Michael Pettis:

https://twitter.com/michaelxpettis/status/1610265849528717318/photo/1

Then again, it's Caixin, so you can double-check...