This is an ongoing list of projects and channels that have decided to permanently move out of Freenode to https://libera.chat (unless stated otherwise). Please open an issue, PR or PM me on IRC (siraben) if there's additions or corrections, such as adding citation links.

Note: I can only accept additional projects and channels to the list accompanied with a citation, which can be (but is not limited to): an official announcement, wiki page, git commit, IRC log, social media post by project lead/official account, etc.

• 2600Hz
• abcde
• ADAM
• ADIIRC
• afew
• Alpine (to OFTC)
• Anbox
• Anklang
• Ansible
• Apache CouchDB
• Apertium (to OFTC)
• Apertus
• Apktool
• AppImage
• Arcan Chat
• Arch Hurd
• Arch Linux
• Ardour
• Arduino
• Armbian
• Arx Libertatis
• Asahi Linux (to OFTC)
• Asterisk
• AsteroidOS
• ASUSWRT
• Aurutils
• Austin Hackers
• BastilleBSD
• Battle for Wesnoth
• Bedrock Linux
• Beets
• bitbot
• Bitcoin Core
• Blue Nebula
• Bluespec Compiler
• Bootstrappable
• BorgBackup
• bpython (to OFTC)
• bspwm
• Btrbk
• BTRFS
• Bucardo
• BundleWrap
• Buildroot (to OFTC)
• BZFlag
• cabal
• Calamares
• Calyxos
• calendar-cli (to OFTC)
• Cataclysm: Dark Days Ahead
• #cat-v (to OFTC)
• CentOS
• cgit
• CHICKEN scheme
• chimper
• circe
• Citra Emulator
• Clash
• Clojure
• cloud-init
• ClusterLabs
• Cockpit
• Coffee House Coders
• ConnectBot
• Convos
• Coq
• Coreboot
• CoreRAD
• Cozy Cloud
• Crosstool-NG
• ctjb
• Curl
• D-Lang
• dav1d
• DC801
• Debian
• Demosplash
• Diakonos
• Directord
• Delta Chat
• #developerslv
• Devuan
• DFeed
• Distrap
• Django
• #dns
• Dokku
• Dolphin
• doof.net
• Dovecot (to OFTC)
• Dulwich (to OFTC)
• dynasm-rs
• EasyRPG
• Edingburgh Hacklab
• eduVPN
• Eggdrop
• Electromagnetic Field Camp
• eLinux
• Elixir
• Elvish
• Emacs
• Emacs User Group Berlin
• Embeddable Common-Lisp
• Emfcamp
• ERC
• ET: Legacy
• exult
• EyeInTheSky IRC Bot
• Fantasya
• Fedora Zhongwen User Group
• Fedora
• #feminism
• Fennel
• Ffmpeg
• Freifunk Vogtland (to hackint)
• FileWiki
• Fink Project
• FOSDEM
• FOSSHOST
• Free Pascal
• FreeBSD
• freedesktop (to OFTC)
• FreedroidRPG
• FreeHL
• FreeIPA
• FrOSCon
• FSFE
• FVWM-crystal
• FVWM3
• Gamingonlinux
• Ganeti Project (to OFTC)
• GDB
• GDC
• Gentoo
• GHC
• Git
• Glowing Bear
• GNU Radio
• go-imap
• go-smtp
• Gobolinux
• Golang
• Google Benchmark
• gophernicus
• go-imap
• go-smtp
• gPodder
• GPUSPH
• Grafana
• GrapheneOS
• Grml (to OFTC)
• Guile
• Guix China
• Guix
• hackeriet.no
• hackerspace.pl
• HackSoc
• Haiku (to OFTC)
• hakyll
• Hammerspoon
• HardenedBSD
• Hardened GNU/Linux (to OFTC)
• Hardfought
• hashcat
• Haskell
• Haveno
• helloSystem
• Helsinki Finite-State Technology (to OFTC)
• herbstluftwm
• HexChat
• hledger
• Home Manager (to OFTC)
• Hplusroadmap
• HPy
• Huggle 3
• HydraBus
• i3 (to OFTC)
• Illumos
• Indian Linux User's Group - Chennai
• IndieWeb
• infer
• Inkscape
• inspectrum
• invidious (moved to Matrix)
• ioquake3
• iPXE
• ircdocs.horse
• #ircpuzzles
• irctokens
• IRCv3 WG
• Irssi
• Ivoz Provider
• Jabbot
• JACK Audio Connection Kit
• Jazzband
• Jellyfin
• Jenkins
• jenkins-debian-glue (to OFTC)
• Joinmarket
• Kallithea Project
• Kanshi
• KeePassXC
• KiCad
• killer
• Kirikiri SDL2
• kpatch
• Kvazaar
• KVIrc
• Lab::Measurement
• Launchpad
• Leiningen
• libass
• libcamera (to OFTC)
• libguestfs
• libopencm3
• librecast
• Libreelec
• LibreOffice
• Libreswan
• Limnoria
• LineageOS
• LinuxGameCast
• Linux Terminal Server Project
• Linux System Roles
• #lisp
• LiteX
• Lobsters
• Lokke: Clojure for Guile
• London Hackspace
• lorri
• Lua Fr
• Lutris
• LuXeria
• Lwan
• LXC
• lykos
• M36
• MacPorts
• Maddy Mail Server (to OFTC)
• Madeinfr
• Maemo Leste
• Maemo Leste
• Magicjudges.org
• mal
• MAME
• Marathon Speedrun Developers
• MariaDB
• Mate SlackBuilds
• Matroska
• mblaze
• McCLIM
• Mednafen (to OFTC)
• MegaGlest
• Mesa (to OFTC)
• Meson (to OFTC)
• MetaBrainz
• Mezzano
• mgmtconfig
• Minecraft devs
• Minecraft Overviewer
• Minetest
• minible
• Miraheze
• MoinMoinChat
• Mojolicious
• Monero
• MorphOS
• Mousepaw Media
• mpv
• MUGS (Multi-User Gaming Services)
• Music Player Daemon (MPD)
• Musl
• Mutt
• #mysql
• naemon
• Narwhal
• Neomutt
• NetBSD
• Netdisco
• Nethack
• NetworkManager
• NewPipe
• Newsboat
• NewtonScript
• Nicotine+
• NixOS - official chat to Matrix IRC to Libera
• Nonguix
• Notmuch
• Oasis Linux
• OCaml
• oidentd
• OmniOS
• Open Source Club at The Ohio State University
• OpenBSD
• OpenIKED
• openITCOCKPIT
• OpenLab Augsburg
• OpenLDAP
• OpenMPTL
• OpenSCAD
• OpenStack (to OFTC)
• Open Source Club at The Ohio State University
• openvswitch
• OpenWRT (to OFTC)
• OpenZFS
• OpenMW
• Org mode
• OSUOSL
• Packetframe
• Packit
• pass (password-store)
• PBUI Project
• PeerTube
• Pepper & Carrot
• Perl
• Pico lisp
• pimutils
• Pioneer Space Sim
• PiVPN
• pkgconf (to OFTC)
• play.it (to OFTC)
• Pleroma
• PLUG
• Podman
• Porteus
• postmarketOS (to OFTC)
• PostgreSQL
• Priyom
• Prometheus
• Pulp Project
• PulseAudio
• purdueLUG
• py3status (to OFTC)
• pydle
• PyLink
• PyPy
• pytest
• Python Cryptographic Authority
• Python
• Qt
• quick-lint-js
• qutebrowser
• Racket
• Radeon and #ROCm (to OFTC)
• Raku
• ranger
• ##rbxdev
• re:Web
• Reprap
• restic
• #revspace
• Risu
• Rizin
• Rockbox
• Rocky Linux
• Rocm (to OFTC)
• Roundcube
• rpi-img-builder
• rspamd (to OFTC)
• Rsync
• RTL-SDR
• r/sysadmin
• s6 (to OFTC)
• Salix-OS
• sbctl
• Scalaz
• #scheme
• ScummVM
• Scuttlebut
• Seattle GNU/Linux Conference
• Selenium
• serious-bg
• Sheffgeeks
• SickGear
• Slackware
• SLASH'EM Extended
• SmartOS
• sngrep
• Solanum
• Solus
• SopelIRC
• Sourcehut
• Sway
• SQLAlchemy
• Stacken
• steam (python module)
• SWI-Prolog
• System Security Services Daemon
• Systemd
• Tahoe-LAFS
• Team Fortress Wiki
• The Foreman Project
• The Lounge
• The Mana World
• The Powder Toy
• The Secret Chronicles of Dr. M.
• The TenDRA Project
• TKKRLAB
• Toot
• Townforge
• Toybox
• TroLUG
• Tuner
• Tübix
• Ubuntu Budgie
• Ubuntu
• Unknown Horizons
• Vabal
• Vegastrike
• VICE
• Vim
• Visidata
• Void Linux
• WA7VC
• wayvnc
• Weechat
• Weston (to OFTC)
• Whim
• Whipper
• Wikimedia
• wilug
• Window Maker
• Wine
• WireGuard
• WPE (to OFTC)
• WSL Utilities
• X.Org (to OFTC)
• Xapian
• XCP-ng (to OFTC)
• Xen (to OFTC)
• XFCE
• XigmaNAS
• Xmonad
• xNetHack
• xoreos
• XTools
• Xubuntu
• yaydl (to OFTC)
• Yancy
• Zapp
• Zed Attack Proxy
• Zig
• ZNC
• Zsh
• zynaddsubfx

More difficult to find are projects that have decided to stay, please let me know.

• #forth (bridged to Libera)
• #freenode (duh)
• #techrights