So when the government pointed to the disproportionate support for Palestine on TikTok vs Instagram, it was actually because Instagram was suppressing it. It is ironic.
While this may be part of the story, it's certainly not the full picture. We know that the CCP is actively manipulating the algorithm on Tiktok to further their agenda on multiple other geopolitical issues—something we have ample evidence for. I don't know if there is a smoking gun on this one topic in particular, but the CCP's goal has always been to divide the American audience; and we know that older Americans skew pro-Israel whilst younger Americans are more oriented towards being pro-Palestinian. If someone looked in the right places, they would more likely than not find evidence of algorithm manipulation to favor a Palestinian bend.