If you haven’t done so already, add the flathub repo
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
Step 2: Install Steam flatpak
flatpak install steam
Step 3: Enable 32-bit support and configure SELinux
Install the necessary packages to enable 32-bit support and configure SELinux for gaming.
sudo zypper in grub2-compat-ia32 selinux-policy-targeted-gaming steam-devices
Step 4: Reboot
Reboot your computer to activate the 32 bit libraries.