Using beta branch of this app

How install Steam Beta

1. Install Flathub Beta

Command:

flatpak remote-add --user flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
flatpak update --appstream

2. Install Steam Beta

Command:

flatpak install --user flathub-beta com.valvesoftware.Steam//beta

Note that GL32 and Platform compat extensions are not automatically installed when installing only beta version of the app. In this case please

flatpak install --user flathub-beta org.freedesktop.Platform.Compat.i386//20.08
flatpak install --user flathub-beta org.freedesktop.Platform.GL32.default//20.08

How run Steam Beta

Command:

flatpak run com.valvesoftware.Steam//beta

I got my Flatpak application into a bad shape and want to start from scratch

To reset Steam Beta for a clean install and settings try:

Command:

flatpak run com.valvesoftware.Steam//beta --reset