GDebi - GDebi lets you install local deb packages resolving and installing its dependencies.
Just Install - just-install - The stupid package installer for Windows.
App Grid - App Grid is an alternative to the Ubuntu Software Center.
Scoop - A command-line installer for Windows
Linux App Store - Linux App Store is a universal web app that makes Snap, Flatpak, and Appimage packages accessible...
GNOME Software - A application for installing apps and updates.