When I check logged out I get CNN and Fox side by side, along with a lot of non-political basketball and Mr. Beast type stuff. Content probably varies on your IP address.
I've previously bounced between different open-source notetaking apps but the great thing about any note format based on Markdown (Standard Notes/Obsidian/Zim/etc), is that it's pretty easy to move from one platform to another if they stop being maintained.
Although in the end I ended up with Microsoft OneNote (with Obsidian for special cases), Microsoft isn't going away and they don't have a habit of killing core products like Google does.
But calling everything disliked "extremist" is counterproductive and is itself an Overton window shift.