The UK’s 99 year lease to subjugate Hong Kong ended, yes. A lease which had been forced upon Imperial China at gunpoint during the century of humiliation. Hong Kong reintegration after the lease expired was a foregone conclusion. The last minute, US-backed attempt at color revolution failed.

Xinjiang

Tibet

I’m pretty sure virtually all of the Tibetan people are happy to no longer be suffering under theocratic feudalism. Happy to no longer be illiterate serfs and slaves, suffering depredation under a god-king. I doubt many of them are sad that CIA asset Dalai “suck my tongue” Lama is in exile. [1] [2]

But at the same time is militarily threatening it’s neighbours

(n.b. the maps are a bit dated, as the US has since pulled out of Afghanistan.)

Forward-defense ring: a perfectly normal and not at all Orwellian term of art. Meanwhile China has one foreign base in Djibouti for anti-piracy of Red Sea transport.