On the other hand I see how our government and media are treating the Palestine conflict.

Related to that, another good thing to look at is how officials and the media talk about these sorts of things: there's all the vocal dehumanization and aggression towards Palestinians in occupied Palestine, towards refugees in the US, etc with the aim of whipping up hatred and inspiring eager genocidaires, whereas in China incitement of ethnic hatred is criminalized, official sources praise Uygur culture, Uygur artists are elevated in the media, etc.

Genocide requires incitement and hatred to sustain it, it doesn't just quietly get enacted without a strong militant base of support to actually carry it out, and it doesn't happen without the whole process leaking like a sieve either - not just from dissenters trying to spread awareness but from the genocidaires themselves celebrating it. If there were a genocide in Xinjiang not only would there be actual, material signs of that like refugees fleeing across the nearby border (instead of there being a constant, normal back and forth there as residents travel for one reason or another and return), there'd be dipshit footsoldiers posting selfies celebrating their latest atrocity and encouraging others to join in, like we see with the IOF publicizing their own crimes in Gaza.