wmctrl — CLI for X Window Manager. More information: <https://manned.org/wmctrl>.

List all windows, managed by the window manager

wmctrl -l

Switch to the first window whose (partial) title matches

wmctrl -a {{window_title}}

Move a window to the current workspace, raise it and give it focus

wmctrl -R {{window_title}}

Switch to a workspace

wmctrl -s {{workspace_number}}

Select a window and toggle fullscreen

wmctrl -r {{window_title}} -b toggle,fullscreen