On 03/07/20 9:12 am, Chris Muller wrote:
> Has anyone figured out how to get Squeak's behavior to behave in 18.04 
> like it did in 16.04 and before?

They use two different GUI shells. 16.04 uses Unity and 18.04 uses Gnome 
desktop manager v3 (GDM3). You may install Unity to restore old behavior.

   # apt-get install ubuntu-unity-desktop

and choose lightdm as the desktop manager when prompted.

If you wish to continue with GDM, the keyboard shortcuts are different. 
Use Win (aka Super) key with tilde to switch between windows of the same 
app. More keyboard shortcuts are at:

 
https://help.gnome.org/users/gnome-help/stable/shell-keyboard-shortcuts.html.en

Also, you may find the 20.04 GDM to be much better than that in 18.04.

HTH .. Subbu