Xiaomi's Mint Browser is also recording data
https://www.bleepingcomputer.com/news/technology/xiaomi-tracks-private-browser-and-phone-usage-defends-behavior/
New research claims that China-based Xiaomi is tracking sensitive information and sending it to their servers if you use the Mi browser, which is bundled with all Redmi and Mi phones.
In a report by Forbes, security research Gabi Cirlig states that Xiaomi's Mi Browser app sends your internet searches, including incognito mode sessions, to Xiaomi servers in Singapore and Russia.