If you’ve taken a look at Joomla 4 Beta, you’ll have noticed large changes in the layout of the Administration area in the backend of the site. The new Admin Dashboards form part of the restructuring of the Joomla 4 UX and are designed for site managers to optimise their site management experience for themselves or clients quickly and easily.
Read more https://magazine.joomla.org/all-issues/april_2021/joomla-4-customising-admin-dashboards
