Issues installing flatpak

[SunnyOd]

After downloading the flatpak and trying to install it, it succeeds but fails when I try to run it:

sunny@nobara# flatpak install com.valvesoftware.Steam.Utility.alvr.flatpak

        ID                                               Branch            Op            Remote                  Download
 1. [|] com.valvesoftware.Steam.Utility.alvr             stable            i             alvr4-origin            0 bytes

Installing…

        ID                                               Branch            Op            Remote                  Download
 1. [✓] com.valvesoftware.Steam.Utility.alvr             stable            i             alvr5-origin            0 bytes

Installation complete.
/tmp
sunny@nobara# flatpak run com.valvesoftware.Steam.Utility.alvr
bwrap: execvp /bin/sh: No such file or directory

Environment

Nobara (fedora 39), kernel 6.8.7-201.fsync.fc39.x86_64

Hardware

nvidia 3090 + AMD 5900x + 64GB RAM. Lots of disk space where flatpak is installed on root or home

Nvidia driver 550.67
ALVR version 20.8.1

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Btw, any plans to add this to Flathub?

[toasterrepairman]

Also seeing this issue on NixOS. Flatpak installs fine, but doesn't register any runnable in my deskop or in the terminal.