The Independence of Mongolia is probably about Inner Mongolia, which is part of China. You can read some history about how Mongolia became independent. The official map of ROC (Republic of China) does not officially recognize Mongolia. The PRC (CCP) recognized the independence of Mongolia. Probably people in Mongolia think Inner Mongolia in China should be part of their territory, and there is an organization for that.

China is pro Palestine if you follow the news. The relationship between Palestine and China goes back to 80s.

I don't think Xiaomi cares what people in Lithuania are reading, other than selling its phones. I don't think CCP cares about what people in Lithuania are reading.