With the newest version of Assistant, by default the double sidebar is displayed, the user needs to click on the toggle button to hide it.
In the past, it was the opposite: the sidebar was hidden by default and the used needed to click on the toggle button to show it.
Since I don't use the sidebar much, I was happier with the previous behavior.
Now, each time I go on Assistant I'm annoyed by the sidebar.
I guess the team have their reasons to change the default behavior to have the sidebar shown.
Fine by me.
But is it possible to either save the state of the sidebar between each session, or add a setting somewhere to control its behavior?