You're getting downvotes but it might be because some people are surprised that Xi Jingping would support Trump but I've gathered some evidence it might be true.
For starters we look at TikTok. Regarding TikTok this article is the most damning: https://www.theinformation.com/articles/how-tiktok-courted-conservatives-before-trumps-win (archive/non-paywall: https://archive.is/TUjo9)
The top leaders pushed through content moderation changes that made TikTok more accepting of some conservative views on the fairness of elections or transgender rights, including by updating policies on banned content or enforcing them differently.
I hate the way they worded that. What they really mean is allowing the big lie (false claims the 2020 election was rigged) and transphobia.
See: https://www.theverge.com/politics/656717/trump-tiktok-ban-maga-influencers (archive link: https://archive.is/DMOLf)
MAGA influencers also view TikTok as a relatively reliable platform to publish pro-Trump content without fear that their accounts will get demonetized, restricted, or worse, deactivated.
Also see: https://www.foxnews.com/politics/maga-republicans-defend-tiktok-conservative-platform-fate-hangs-balance-supreme-court (archive link: https://archive.is/RGBC8)
"Trump won the election because he listened to first-time voters like myself and joined TikTok to get his message to us directly," RNC Youth Advisory Council Chair Brilyn Hollyhand told Fox News Digital of the impending ban.
President Donald Trump “pleaded” with China’s Xi Jinping during a 2019 summit to help his reelection prospects, according to a scathing new book by former Trump adviser John Bolton that accuses the president of being driven by political calculations when making national security decisions.
Then we cannot forget about all the Chinese bots who post online. "China is pushing divisive political messages online using fake U.S. voters" https://www.npr.org/2024/09/03/nx-s1-5096151/china-tiktok-x-fake-voters-influence-campaign Says it very clearly. They used the same strategy Russia did.