Code Editor: Sublime
C++ compiler on Windows: MSVC(Visual Studio) on Windows Terminal
Doc/Slides Editor: Google Docs
Video Recorder/Streamer: OBS Studio
Chat & Social: Discord, Skype
Virtual Machine Software: Virtual Box
Recommend Open Source & Free Edit Software:
Picture Editor: Gimp(for jpeg, NO recommend to build from source),
Raw Picture Editor: Darktable (for Raw)
Audio Editor: LMMS