I think that when it comes to censorship, it is a little bit of a different argument with the platform itself enforcing the rules as they are the ones who created the platform, so they can at least have somewhat of a say when it comes to what they can/can't allow on a platform. The conversation enters a different ballpark when it's in the context of a government controlling and enforcing the censorship.
It seems that the government is going the route of reducing the visibility of content as a form of moderation, like what Tarleton Gillespie discussed in their article "Do Not Recommend? Reduction as a Form of Content Moderation". A line that stuck out to me was on page 1 which Gillespie said social media platforms "reduce the visibility or reach of problematic content. Many social media platforms have quietly begun to identify content that they deem not quite bad enough to remove. The offending content remains on the site, still available if a user can find it directly".
The government is following similar methods by banning what they deem as a problematic platform, TikTok, from government devices but are still allowing the public to have access to it for the time being.
The argument of censorship also plays into question with people asking the question of "does this violate the first amendment" as the government restricting access to certain content might fall into that category. However, I do wonder if the first amendment argument only applies to content within the country or if it is also in jurisdiction of content from other countries as well.