Linux
THIS IS THE MEAT AND POTATOES OF THE POST, THE REST IS JUST DESERT!!
secureblue - Currently The Best Security Focused Desktop And Server Linux Operating System, it's based on Fedora (You still need to follow their guides to harden it further) Use Trivalent browser (currently only supports secureblue) to fully harden your OS. Discord
Lynis - Linux/ MacOS hardening Auditing tool
Linux Hardening - Hardening Linux
ansible-collection-hardening - Linux Hardening guides and tools
Privacy.sexy - Name might look sus, but it has lists of objectives to look for
How to Secure a Linux Server - Documentation on securing a server
Guides
WhoAmI Project - Privacy / Anonymity Tool
ArchWiki - Linux Guide Manuals TUI
Gentoo Wiki - Gentoo Wikis
Debian Wiki - Debian Wiki
LinuxJourney - Interactive Linux Guides
HowToLinux - Linux Desktop Guides
Boot-Repair - Grub Repair Guide for Linux Systems
Linux Command Library - Showcases and explains some terminal commands (Useful for starting out)
ALWAYS TRY TO USE FLATPAK
Password Privacy / 2FA (2 Factor Authentication)
Ente Auth - 2FA
Aegis - 2FA
Stratum - 2FA
Bitwarden - Password Managers
Proton Pass - Password Managers
DNS Adblocking
Mullvad DNS - DNS Adblocking
NextDNS - Customizable DNS Adblocking Service
AdGuard DNS - Customizable DNS Adblocking Service
DNSWarden - DNS Adblocking
Browser
Use your distro provided appstore to install, if not try to get flatpaks!
Trivalent (Currently only available for Secureblue OS) Currently one of the best browser for sandboxing and exploit protection in LINUX.
Brave (Chromium is much more secure than Gecko / FireFox based broswers) does have some contraversies in the past
LibreWolf (Hardened FireFox)
VPN
Mullvad VPN - Paid
IVPN - Paid
NYM - Paid
Firewall
By default some distros DOES NOT pack firewall with them, so check weather your firewall is up and active
OpenSnitch - Linux Firewalls (IDK why but Linux usually doesn't have a working firewall out of the box, always look if the firewall is up!)
Tracee - Runtime Security and Forensics
vnStat - Network Monitors
USBGuard - Implement USB Device Authorization Policies (IDK where to place this)
GoogleTeller - Google Tracking Notifications
Sandboxing
Flatseal Use it to grant or remove permissions to Flatpaks
Warehouse (Manage installed Flatpaks and view properties of any package, Change versions of a Flatpak to rollback any unwanted updates, Take snapshots of your apps' user data, saving your data etc)
Firejail - Sandboxing Tools
Bubblewrap - Sandboxing Tools
Triage - Online Sandboxes
Cuckoo - Online Sandboxes
SquareX - Online Sandboxes
Search Engine
Browser and search engine are 2 different things, browser is the app you use to search. Search engine is the place where you enter your query. If you use the most hardened Web browser but still uses google, then it's not making much change.
Mullvad Leta (Has brave search and google search and uses cached pages to show result, essentially privacy friendly), currently the best option IMO. Currently there is no tab to look for images, shopping, map etc.
Brave Search (the most closest result to google, at-least for me)
SearXNG (the link provides various instances which you can configure, but if you wish to get one that just works then you can find it here SearXNG )
StartPage Currently owned by an advertising company, I think the ad company is based in China
duckduckgo (Its's basically Bing but more privacy focused. It's the most recommended but people have hard time adapting to it. Have been in some controversies lately)
mojeek ,has its own crawler and index, that is it is not dependent on google or bing results. The results however is pretty bad imo. It could be improved in the future if enough feedback is given ig?
Browser Extensions
uBlock Origin - Ad content blocker (For chromium based browsers = uBlock Origin Lite)
Bypass All Shortlinks Debloated (Requires either ViolentMonkey, Tampermonkey, or FireMonkey) (Greasy Fork, OpenUserJS or Userscripts Find new scripts from these sites)
Firefox Multi-Account Containers - Color-coded tabs in this tool keep your online life separated, preserving your privacy. Cookies are containerized, allowing simultaneous use of multiple identities or accounts.
Clients
mx moment - Encrypted Chat Client
ZapZap - WhatsApp Client
YouTube-Viewer, Pipe Viewer, Pipeline - YouTube Clients
GrayJay - Combines YouTube, Twitch, Rumble etc
Vesktop Modded Discord Client
BetterDiscordctl - Modded Discord Client
Discover - Discord Overlay
File Tools
syncthing - continuous file synchronization program between two or more computers in real time
Warpinator - Share files across the LAN
rQuickshare - NearbyShare/QuickShare from Android for Linux and macOS.
Dolphin, SpaceFM - File Managers
Collector - File Drag \& Drop
p7zip, GNU Gzip, pigz - File Archivers / Unzippers
Pika Backup, RecoverPy - File Backup / Reocovery Tools
FSLint, kdiff3, fclones - Duplicate File Finder
xdg-ninja - Unwanted File Finder
gscan2pdf - Turn Documents into PDFs
Window Managers
Hyprland - Wayland Compositor Resources Arch Wiki Simple Config (Alternate Link)
i3wm, BSPWM, herbstluftwm - Tiling Window Managers
awesomewm, xmonad, Qtile, dwm - Dynamic Window Managers
File Scanners
Hybrid Analysis - Online File Scanner
VirusTotal - Online File Scanner