I believe what is important when looking at these platforms and systems is to appreciate that some people have greater or less great risks than others. Elected officials, in one case, might be concerned about the data that is being collected. However, in our research on TikTok we found no overt surveillance and no overt censorship. It might happen at some point, but not in our research.
In the case of WeChat, we saw that there has been the usage of Canadians' communications to build up a censor index that is then applied to individuals who operate or live within China. Therefore, I think Canadians are right to be concerned, in particular about the way that WeChat has historically, at least, used their communications to build that censor index.
Currently, we have no evidence of a clear problem with TikTok.