After migrating a VM to Lubuntu 20.04 (with LXQt 0.14.1) I noticed that the launch bar / taskbar would show windows from all workspaces. My preference is to view only the ‘current' workspaces windows at any time to reduce accidental switches between desktops. There is an easy way to configure this.
To filter / limit the visible windows in the task manager:
- Right-click on the task manager and select Configure “Task Manager”
- In the General section, select Show only windows from desktop “Current”