1) Put Orion in Fullscreen mode and use Compact layout.
2) Open 3-5 tabs
3) Move your pointer to the menu bar
4) Traffic Light controls will appear, shifting the Address Bar and tabs over to the right
It's very easy to accidentally trigger the fullscreen traffic light buttons when moving your pointer to the toolbar to select something. This is fine when it only shifts the buttons on the left side of the toolbar, but in the new Compact layout it shifts the Address Bar and tabs to the right as well. These shouldn't shift over as sometimes it can lead to accidentally closing a tab or selecting a different tab than you intended.
0.99.126.4.1.8-rc (WebKit 619.1.1)
Sonoma (14)