Which command in Linux would typically be used to list all installed packages?

The command that would typically be used to list all installed packages is indicated accurately by the selection of all options because each command serves this purpose in different package management systems within Linux.

The "dpkg -l" command is specific to Debian-based systems, such as Ubuntu. It lists all installed packages managed by the dpkg package management system, showing their versions and a brief description.

The "apt list" command is also relevant on Debian-based systems. When using this command with the appropriate filters, it can display all installed packages along with those available for installation from defined repositories.

On the other hand, "rpm -qa" relates to Red Hat-based distributions, such as Fedora and CentOS. This command queries the RPM database and lists all installed packages that have been installed using the RPM Package Manager.

Since all three commands are valid in their respective environments for listing installed packages, the correct answer encompasses all the options given. Understanding the context of both Debian and Red Hat package management systems is essential for recognizing why each command is applicable.