Each of the supported desktop environments in Solus provide support for workspaces, enabling you to group various application windows into their own dedicated space and switch between them.
Budgie enables the switching of workspaces via the Workspace Switcher. You can enable workspaces in Budgie by adding the Workspace Switcher applet to Raven.
Find the Workspace Switcher entry and select it. Click the '+' button at the top of the panel. This will add the Workspace Switcher to the center section, as shown below.
GNOME enables the switching of workspaces via the Workspace Switcher on the right side of the Activities Overview screen. Application windows can be dragged from the Activities Overview to a workspace, whether it is empty / new, or one that already has windows in it.