it looks like these env vars aren't being set

Those env vars are being set within the steam.sh script (line 28 for STEAMROOT and line 646 for STEAMEXEPATH). I suspect that something is wrong with the binary itself (e.g. ubuntu12_32/steam).

Fwiw, I'm seeing a similar crash. Though, I didn't reboot after there was a fairly large update, so I'll try a reboot and report back.

No longer crashes after reboot,

I have this exact same problem on nixos

I have the same problem on Fedora 42 KDE version.

I got similar problem on a Debian-based distro. Reboot "fixed" it for me.

I got similar problem on a Debian-based distro. Reboot "fixed" it for me.

it randomly fixes itself for me. I have no clue why
Reboot never works.

Running systemctl --user restart pipewire fixed it for me somehow

Running systemctl --user restart pipewire fixed it for me somehow

Oh so that's compatible problem with pipewire instead. Interesting (and sucks).

It's very strange how this causes it as every other program can use pipewire fine

This occurs to me as well on archlinux, restarting pipewire (systemctl restart --user pipewire) always works. But I what I found interesting is that this only happens on window managers like sway and hyprland and not on gnome. I also ran gdb on the executable and noticed that this happens when accessing a pipewire specific 32bit library. I also noticed that adding a bluetooth audio device tends to cause the bug to occur again after restarting pipewire.

It happened to me only 1 time on XFCE (maybe because i use the speaker from my montior. It's not great, but it works). So I guess it has something with selecting audio channel from dota 2's side caused crashes which shouldn't be the DE/WM's specific problem.

I have the same problem on Gentoo Linux. Reboot and restarting pipewire did not work for me.

I have this same problem on archlinux when nvidia GPU disabled(switch to iGPU in UEFI). Steam only works with dGPU enabled in UEFI. I'm using laptop with AMD Ryzen 7 8845HS + GTX 4060 btw.

same issue, kubuntu, nvidia, I have the issue on 580 drivers but not on the open source drivers (1050 ti). so, breaking distro containment.

had this issue, fixed it by reinstalling the 580 drivers. kubuntu, 1050 ti.

I'm on CachyOS with Hyprland and I'm having this issue rn, running systemctl --user restart pipewire seems to work but obviously it's really annoying having to run this command every single time i want to open steam.

Idk if it has something to do with this wireplumber config i made for an ironbar script

monitor.alsa.rules = [
  {
    matches = [
      {
        "node.name" = "~alsa_input.*"
      },
      {
        "node.name" = "~alsa_output.*"
      }
    ]
    actions = {
      update-props = {
        "session.suspend-timeout-seconds" = 0
      }
    }
  }
]

EDIT: I removed the rule, rebooted my PC and now steam is working normally again (or at least it seems like it)