Product presentation is a hard-to-develop skill. I agree that many aspects of the page are muddy.

I personally find their compact mode the cleanest I have ever seen. This is the entire window: https://imgur.com/hhfyeVz To access the address bar, move the mouse to the top, or type Ctrl+L. For the tabs, move the mouse to the left, or type Ctrl+1, 2… or Ctrl+Tab to cycle through.

I wish Firefox had such a compact mode.