Web Browser: Firefox

Email Client: YahooMail, Gmail

Terminal: Tilix

IDE: Visual Studio Code, Atom

File manager: Nautilus

Basic Text Editor: Vim, Gedit

IRC/Messaging Client: Telegram

PDF Reader: Evince

Office Suite: LibreOffice, WPS Office

Calendar: Gnome Calendar

Video Player: VLC, MediaInfo

Music Player: Lollypop, Spotify, EasyTAG

Photo Viewer: Shotwell

Screen recording: Simple Screen Recorder

Shell: zsh

Bitmap Image Editor: GIMP

2D Vetorial Image Editor: Inkscape