Surf now opens to the feed of your choice, aka your Home.  The default feed for this is your Surf Timeline, which you design with a mix of profiles and sources you care about. 

If you’d like to choose a different feed for your Home experience, tap the three-dot menu on any feed and select Set as Home.

You can return to Home at any time by tapping the Home icon on the sidebar below your profile or in the bottom toolbar.