How do you define "Chinese propaganda" and why do you think CCP even cares about a place as small as Lemmy?
As a side observer, I just see some people being more loyal to China and others to the US. This does happen on a decentralized platform where you can't shut down the other side of the discussion.
Overall, Lemmy remains America-centric and America-dominated on all fronts, so if there's any bias, it's here.