Cannot select DuckDuckGo as default search engine on private mode

I formated my laptop and installed the new Windows 11 and Brave 1.32.106 but I have a problem with a feature that I had previously and now it’s disappeared.
I use Google as my default search engine in normal mode and this is ok, but when I swicth to private mode I want that my default search engine will be DuckDuckGo. Previously I have the switch to do this on my home/control page, now I cannot find it anymore, how I can do this?