When Orion is split screened in windowed mode (not fullscreen), hovering and/or clicking on the "Back/Forward" in the Overflow Menu has no effect.
In this screenshot, I have hovered over the selection for 5+ seconds and clicked it 3 times, with no effect.
The back/forward in the overflow menu should properly work and result in a submenu with functioning "Back" and "Forward" buttons.
Version 0.99.127.1-beta (WebKit 619.1.1)
Sonoma (14)