When accessing Canvas Studio from within Canvas, the landing page only displays videos and collections that I have created myself. Those that were shared with me from others are not visible. The end-user must know to click the menu button and then select "Shared With Me" to see them. You also cannot view both at once right now--items I created and items shared with me.
It would be ideal to see an option on the Studio landing page to view shared content from that same location. This could be as simple as a checkbox on the landing page that says "Show Content Shared with Me" that remains on/off based on user preference.