I was referring to Windows Mobile. And yes, I use DuckDuckGo, together with Vivaldi browser and the privacy extensions etc. In fact, I have reduced my use of FB too. No Google docs or tracking on YouTube either.
Some will call me paranoid but I don't need Google and FB to know even more about me than I do myself.
I use DDG and Brave. Starting to not like Brave because of their affiliation with BAT. I used to love the concept of cryptocurrency but not anymore.
As for FB, just delete your account I deleted mine since 2016 and never looked back. Facebook just not my thing. Over the course of 2008 to 2016 I deleted and created FB account 3 times.
The hardest part for me is youtube because of content creators. This is very hard to move a way from unless these content creators get really good incentives to upload to more platforms.