Linux Apps

Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.

LUKS is the standard for Linux hard disk encryption. By providing a standard on-disk-format, it does not only facilitate compatibility among distributions, but also provides secure management of multiple user passwords. LUKS stores all necessary setup information in the partition header, enabling to transport or migrate data seamlessly.

systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system.
ArchWiki: https://wiki.archlinux.org/index.php/systemd

The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting with a mouse and keyboard. The X.Org project provides an open source implementation of the X Window System.
ArchWiki: https://wiki.archlinux.org/index.php/Xorg
libinput: https://wiki.archlinux.org/index.php/libinput

PulseAudio is a sound system for POSIX OSes, meaning that it is a proxy for your sound applications. It allows you to do advanced operations on your sound data as it passes between your application and your hardware. Things like transferring the audio to a different machine, changing the sample format or channel count and mixing several sounds into one are easily achieved using a sound server.
ArchWiki: https://wiki.archlinux.org/index.php/PulseAudio
Troubleshooting: https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting

GNOME is a free and open-source desktop environment for Unix-like operating systems. GNOME is part of the GNU Project and developed by The GNOME Project which is composed of both volunteers and paid contributors, the largest corporate contributor being Red Hat.
Help: https://help.gnome.org/users/index.html.en
ArchWiki: https://wiki.archlinux.org/index.php/GNOME
GNOME Shell Extensions: https://extensions.gnome.org/

Déjà Dup is a simple backup tool for GNOME. It hides the complexity of backing up the Right Way (encrypted, off-site, and regular) and uses Duplicity as the backend.
https://wiki.archlinux.org/index.php/Synchronization_and_backup_programs

GNOME Software lets you install and update applications and system extensions.
fwupd: https://fwupd.org/lvfs/docs/users

Snaps are app packages for desktop, cloud and IoT that update automatically, are easy to install, secure, cross-platform and dependency-free. They're being used on millions of Linux systems every day.
Documentation: https://snapcraft.io/docs

Search thousands of snaps used by millions of people across 41 Linux distributions.
Requires Snapcraft.

Flatpak is a next-generation technology for building and distributing desktop applications on Linux.
Documentation: https://docs.flatpak.org/

Flathub is the home of hundreds of apps which can be easily installed on any Linux distribution. Browse the apps online, from your app center or the command line.
Requires Flatpak.

Flatseal is a graphical utility to review and modify permissions from your Flatpak applications.

Wine (originally an acronym for "Wine Is Not an Emulator") is a compatibility layer capable of running Windows applications on several POSIX-compliant operating systems, such as Linux, macOS, & BSD. Instead of simulating internal Windows logic like a virtual machine or emulator, Wine translates Windows API calls into POSIX calls on-the-fly, eliminating the performance and memory penalties of other methods and allowing you to cleanly integrate Windows applications into your desktop.
Wine User's Guide: https://wiki.winehq.org/Wine_User%27s_Guide
Wine FAQ: https://wiki.winehq.org/FAQ
ArchWiki: https://wiki.archlinux.org/index.php/Wine

A terminal emulator for GNOME.

System Monitor is a tool to manage running processes and monitor system resources.

Tweaks allows the adjustment of several advanced GNOME options that can't be configured in GNOME Settings.

Dconf Editor is a viewer and editor of applications internal settings. It allows editing options not exposed in some applications interface. It’s a powerful tool, that could break some applications if misused, and you should only use it understanding that.

Simple file manager for GNOME. Also known as Nautilus. Provides the user with a simple way to navigate and manage files.
Nautilus Wipe: https://wipetools.tuxfamily.org/nautilus-wipe.html

File Roller is an archive manager for the GNOME environment. This means that you can create and modify archives; view the content of an archive; view and modify a file contained in the archive; extract files from the archive.

Access everything with virtually zero effort. Run applications, open files or their paths,
open bookmarks in your browser, search the web, calculate things and a lot more. Albert is a desktop agnostic launcher. Its goals are usability and beauty, performance and extensibility. It is written in C++ and based on the Qt framework.

Alternatives: Ulauncher, kupfer

KeePassXC can store your passwords safely and auto-type them into your everyday websites and applications. KeePassXC is a community fork of KeePassX, the cross-platform port of KeePass for Windows. Every feature works cross-platform and was thoroughly tested on multiple systems to provide users with the same look and feel on every supported operating system. This includes the beloved Auto-Type feature.

Alternatives: KeePass

PWGen is a professional password generator capable of generating large amounts of cryptographically-secure passwords—“classical” passwords, pronounceable passwords, pattern-based passwords, and passphrases consisting of words from word lists.

Seriously private browsing. Firefox shows you how many data-collecting trackers are blocked with Enhanced Tracking Protection. Firefox Lockwise makes the passwords you save in Firefox secure and available on all your devices. Firefox Monitor alerts you if we know your information is a part of another company’s data breach.
Add-ons: https://addons.mozilla.org/firefox/
ArchWiki: https://wiki.archlinux.org/index.php/Firefox

Alternatives: Vivaldi, Brave

An efficient blocker add-on for various browsers. Fast, potent, and lean.

Alternatives: Adblock Plus, AdGuard