Let’s Just Look At A Few To Get The Concept

• Synaptic
• https://www.nongnu.org/synaptic/
• Snapcraft
• https://snapcraft.io/
• Flatpak
• https://flatpak.org/
• AppImage
• https://appimage.org/

Because this is Linux anyone (including you) can write an application to enhance, improve or change the way packages are managed. As a result there are several of these 3rd party applications already available