Possibly related - I recently did a ‘flatpak update’ in the command window. I received an error that ‘Steam needs a later flatpak version’
I know to update flatpak apps using ‘flatpak update’, but I am unaware of how to update flatpak itself. This might also solve the other poster’s question, as this update error only arose in the interlude since I last ran a ‘flatpak update’ command.
According to Flatseal I’m running flatpak version 1.10.8