Removes the noise from YouTube so you can focus on watching. It hides the sidebar, notification bell, create button, voice search, and premium upsells. The category chips bar on the home page is gone.
On the subscriptions page, you get a clean feed without "Latest" and "Most relevant" section headers.
On watch pages, the player automatically enters theater mode and expands to fill your screen. The masthead stays out of the way until you hover near the top of the page.
