There are times when I want the capabilities of xtree, unixtree, etc., that shows a "graphical" display of a directory hierarchy. I have installed KDE dolphin that more or less has this functionality, but not nearly as compact as xtree. I have used the CLI command tree; the functionality of tree is too limited. Is there a working xtree, etc., available for Ubuntu 20.04.1 LTS? If the installation of a xtree-like application requires additional files/utilities and apt does not automatically get these or if the installation is outside of the apt utilities, please indicate (or provide a link to) what additional steps/configurations are needed.
SnapOverflow
The file manager ytree is almost identical to xtree. Also you can look at the Xtree Fan Page for other clones. EDIT: In that page, unixtree is the more mature and feature filled clone.