This report highlights major differences in the prevalence of hashtags related to subjects like Hong Kong Protests, Tainanmen Square, Tibet, the South China Sea, Taiwan, Uyghurs, Pro-Ukraine, and Pro-Isreal when compared to other major social media platforms.
Additionally the times cited a Wall Street Journal analysis
(https://www.wsj.com/tech/tiktok-israel-gaza-hamas-war-a5dfa0ee) which "found evidence that TikTok was promoting extreme content, especially against Israel. (China has generally sided with Hamas.)"