Tencent/WeChat also control what you see in your feeds. I often notice when I share information/pictures related to Hong Kong/Xinjiang then my posts doesn’t always appear in my friends feeds (because the image hash/phrase cause the post to be shadowbanned). Their approach is quite evil because it will make you think people might not like your post (since they don’t “like” it) when in fact they simply can’t see it.
To bypass the filter then I slightly modify images to change their hash, or record video of the video/image/text. Maybe soon they’ll start making fake likes from friends so that people can’t use inactivity as a way of detecting shadowbans, or maybe they’ll make the posts only visible to a small subset of friends.