A list of free software that I use. (I run Windows but a lot of these also run on Linux)

Free as in Speech

Programs:

7zip - File archival & extraction (for opening compressed files)
Audacity - Audio editing & recording
Calibre - Ebook management (for loading files to your ebook reader 🏴‍☠)️
FileZilla - FTP client (for uploading files to a server)
Firefox - Browser
Gnu Image Manipulation Program (GIMP) - Image editing & digital art
Notepad++ - Text editor
qBittorrent - Torrent client (for peer-to-peer sharing of large files 🏴‍☠)

Browser Extensions:

Ghostery - Blocks trackers & prevents cookie popups
uBlock Origin - Adblocker

Free as in Beer

Programs:

Foobar2000 - Music Player
Soulseek - Peer-to-peer filesharing client 🏴‍☠
Visual Studio Code - Text editor

Browser Extensions:

FeedBro - RSS reader (a way to subscribe to sites and see when they have new updates)