While it's not quite ready just yet to be a one-click install, the game manager Lutris is at least now available with various improvements as a Flatpak Beta.
PolyMC is easily one of the best Mineraft launchers available, enabling some easy modding on Linux and Steam Deck.
While it's not quite ready yet, proper support for Flatpak is coming for Lutris which will make it work easily on the Steam Deck and a new update is out now.
Bottles continues to mature as a way to manage installing applications and games with the compatibility layer Wine. A fresh release is out now showing off some UI improvements and new features.
ProtonUp-Qt gives you an incredibly easy way to install compatibility layers on Linux like GE-Proton (formerly Proton GE), Lutris-Wine, Luxtorpeda and more.
Find you get too much of a performance hit using other recording tools like OBS Studio? Maybe this new tool will help.
Bottles, a free and open source application for Linux (that works well on the Steam Deck), has another new release out bringing in major new features.
Want to mod the Steam Deck? SteamOS Plugin Manager has been renamed to just Plugin Loader and it's had a bit of a Python rewrite recently to make it better
Lutris, the free and open source game manager for installing games on Linux from many stores, has a new version available as work continues to improve Steam Deck support.
After a successful crowdfunding campaign a while ago, Dungeon Alchemist is now available on Steam in Early Access.
GameMaker Studio 2 is now just GameMaker, and there's a new update out with some dramatic improvements for Linux game exports and Steam Deck support.
It's not just the Steam Deck that is getting upgrades, as Valve are also tweaking the main Steam client with a fresh Beta release out now.
LDtk (formerly known as LEd) is a free and open source level editor, developed by Sébastien Benard who previously worked on the successful Dead Cells and also recently Nuclear Blaze.
If you want to get emulation setup on Steam Deck, you need to take a look at EmuDeck which makes installing and configuration nice and easy.
RetroArch, the very popular application front-end for emulators and more has a new release out and it includes better support for the Steam Deck.
Recently I did a guide using the Warpinator tool to transfer files from PC to Steam Deck, here's another way using the wonderful tool Syncthing that you might prefer.
Want to see who is chatting in Discord on a Steam Deck or Linux desktop, while you're gaming or doing other things? Let me introduce you to the Discover Overlay.
The team behind the very popular and fantastic open source video capture software OBS Studio have done a Steam release. For Linux users though, you should just stick to Flatpak from Flathub.
While Elgato continue to ignore the Linux market, developers from around the community end up creating applications to fill the gap. Now there's Boatswain, which allows Linux users to control Elgato Stream Deck devices.
News I'm sure many Linux fans will be happy to see - Valve sent over a Steam Deck to the developer of Lutris, the free and open source game manager.