Steam exits before login page in VM on M1

[benthetechguy]

Since Steam is currently impossible to run on M1 normally due to a combination of factors, I decided to try it in a KVM setup on my M1. This makes it 4K pages, and allows me to set up qemu-user-static to seamlessly emulate armhf so that I can run box86, albeit slowly. This works well through the update screen, but then it exits instead of loading the login page. Here's the full output:

steam.sh[33972]: Running Steam on debian 12 64-bit
steam.sh[33972]: STEAM_RUNTIME is enabled by the user
setup.sh[34035]: Steam runtime environment up-to-date!
steam.sh[33972]: Steam client's requirements are satisfied
Box86 with Dynarec v0.3.3 e02844fb built on Dec  2 2023 00:33:50
[2023-12-02 01:05:57] Startup - updater built Nov 29 2023 19:58:56
[2023-12-02 01:05:57] Startup - Steam Client launched with: '/home/ben/.local/share/Steam/ubuntu12_32/steam'
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2023-12-02 01:05:58] Loading cached metrics from disk (/home/ben/.local/share/Steam/package/steam_client_metrics.bin)
[2023-12-02 01:05:58] Failed to load cached hosts file (File 'update_hosts_cached.vdf' not found), using defaults
[2023-12-02 01:05:58] Using the following download hosts for Public, Realm steamglobal
[2023-12-02 01:05:58] 1. https://cdn.steamstatic.com, /client/, Realm 'steamglobal', weight was 1, source = 'baked in'
[2023-12-02 01:05:58] Checking for update on startup
[2023-12-02 01:05:58] Checking for available updates...
[2023-12-02 01:05:58] Downloading manifest: https://cdn.steamstatic.com/client/steam_client_ubuntu12
[2023-12-02 01:05:58] Manifest download: send request
[2023-12-02 01:05:58] Manifest download: waiting for download to finish
[2023-12-02 01:05:59] Manifest download: finished
[2023-12-02 01:05:59] Download skipped: /client/steam_client_ubuntu12 version 1701289036, installed version 1701289036, existing pending version 0
[2023-12-02 01:05:59] Nothing to do
[2023-12-02 01:05:59] Verifying installation...
[2023-12-02 01:05:59] Performing checksum verification of executable files
[2023-12-02 01:06:01] Verification complete

Steam logging initialized: directory: /home/ben/.local/share/Steam/logs

XRRGetOutputInfo Workaround: initialized with override: 0 real: (nil)
Error: XRRGetOutputInfo() is not available
Error: XRRGetOutputInfo() is not available
steamwebhelper.sh[34090]: Runtime for steamwebhelper: defaulting to /home/ben/.local/share/Steam/ubuntu12_64/steam-runtime-heavy
steamwebhelper.sh[34090]: glibc >= 2.34, partially disabling sandbox until CEF supports clone3()

The error could be with steamwebhelper, which I think would make this a box64 bug, so I can move the issue there if needed.