Linux Hint published a quick tutorial about how to list all installed packages in Raspberry Pi OS.
How to List Installed Packages in Raspberry Pi OS
Raspberry Pi OS has tons of different packages installed in it. However, finding those packages can be a difficult task as it requires your time in searching for those packages. This article explains different methods to find the installed packages on your Raspberry Pi. Finding packages through terminal and GUI are discussed in this guide for clear understanding.