Yes, Joomla is still used by a significant number of people and organizations to build and manage websites. Joomla is a popular and widely-used content management system (CMS) that has been around since 2005, and it has a large and active user base and developer community.
Joomla is known for its flexibility and customization options, which make it a good choice for building a wide range of websites, including e-commerce sites, corporate websites, and community portals. It is also regularly updated and supported, which helps to ensure that it remains a viable option for users.
While there are many CMSs available, Joomla is still a popular choice for many users due to its feature-rich platform and the active community that supports it. It is likely to continue to be used by a significant number of people in the future.