It's like an offline Pinterest/arena. Swipe references from around the internet, organize in infinite granularity with tags and folders. Browser extension automatically adds a link back to where it came from. It's very good.
Linked is a Verge article about an app in beta that's a browser that only searches and shows feeds (RSS, ActivityPub, etc.) It sounds interesting! But I'm more excited that this is only one of many experiments to diversify the web.