GNOME Core Applications
GNOME Shell
Configuration
Settings
main interface to configure various aspects of GNOME. Diverse panels represent graphical front-ends to configure the NetworkManager daemon and other daemons.
Communication
Calls
initiating and answering phone calls and VoIP calls (mainly utilized on Linux phones)
Contacts
the contacts book app
Files
Document Scanner (SimpleScan) - the scanner application
Image Viewer (Loupe) – the image viewer
Evince & Papers (Document Viewers) – the document viewer
Files (Nautilus) – the file browser
Audio Player (Decibels) - music player
Videos (Totem) – the media player
System
Connections - the front-end for remote desktops. Introduced in GNOME 41.
Disks - formatting and managing partitions
Disk Usage Analyzer (Baobab) - Used for representing disk usage graphically
Extensions - extension manager for the GNOME desktop
Fonts - the font viewer
Logs – written in Vala, introduced with 3.12
Help (Yelp) - the help documentation software
Software - the software manager, supports native package managers, as well as Flatpaks
System Monitor - shows CPU usage graphs
Terminal Emulators
Console (King's Cross)
Terminal (replaced by Console)
Ptyxis (replaced Terminal starting on Fedora 42 and Ubuntu 25.04)
Web (Epiphany) - the web browser
World
Clocks - creating alarms and timers
Maps - map application, powered by OpenStreetMap
Weather - the weather app
Utilities
Calculator (gcalctool)
Calendar
Characters (Gucharmap)
Camera (Snapshot)
Tour
GNOME Text Editor
Gedit (replaced by GNOME Text Editor)
GNOME Screenshot - the screenshot utility
Development tools
Boxes - the virtualization software
Builder - the IDE for creating GNOME apps
D-Spy - D-Bus analyzer
Dconf Editor - Dconf database editor
Devhelp - API documentation viewer
Sysproof - debugging software
GNOME
GNOME Project
Adwaita (design language)
https://en.wikipedia.org/wiki/GNOME_Core_Applications