Brave browser sends data anonymously from my PC even though I unchecked the privacy options in settings

Brave browser sends data anonymously from my PC even though I unchecked the privacy options in settings.
I unchechecked the daily ping option and the other options too.
I’m now using the latest brave on my PC. What i noticed that after my last brave update, it starts to upload almost 1Mbps and download 24kbps from my pc with an interval of 8-9 seconds.
I found it only happens when I open the brave browser. When I kill the brave in task manager uploading stops.
I troubleshooted whether is it becoz of any stored cookies, and ended up deleting all the cookies and cross site scripts. It doesn’t worked either.
I am suspecting a serious bug in the latest brave browser update in Windows desktop version.

What software are you using to analyze the network behavior of Brave? Fiddler?