Kind of a nitpick, but right now it' difficult to tell which saved window is offline vs online.
Currently, the emoji for offline windows is dimmed but the title of the window is same brightness as the online windows.
For example, in this next screenshot, "money, webflow and music" are offline.
I sketched out how it'd look if the window title was white at 50% brightness. I think it's easier to tell this way which are offline and which are online.