Steps to reproduce:
Open the sidebar while having the address bar selected.
The address bar and outline selection of it should stay in sync during any transition.
Orion, OS version; hardware type:
Orion Version 0.99.113.2-beta (WebKit 613.1.12), MacOS Monterey 12.4 Beta, 2017 iMac
(The address bar "slides" during the transition while the outline selection moves instantaneously)
Note: this is dependent on the size of the window, if the window is horizontally small enough the transition will be instantaneous for them both.