Your system information

• Steam client version: 1.0.0.74-r1 64-bit
• Distribution (e.g. Ubuntu): Gentoo 2.9 64bit
• Opted into Steam client beta?: Yes
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

I can launch steam fine using STEAM_RUNTIME=1
But using STEAM_RUNTIME=0 show this error

src/steamUI/Main.cpp (3060) : !"Fatal Error: Could not load module 'bin/vgui2_s.dll'"

Steps for reproducing this issue:

1. execute "STEAM_RUNTIME=0 steam"

Startup log

➜ STEAM_RUNTIME=0 steam
steam.sh[752]: Running Steam on gentoo 1.0.0.74-r1 64-bit
steam.sh[752]: STEAM_RUNTIME is disabled by the user
steam.sh[752]: Can't find 'steam-runtime-check-requirements', continuing anyway
[2022-12-30 15:47:41] Startup - updater built Dec 19 2022 21:57:59
[2022-12-30 15:47:41] Startup - Steam Client launched with: '/home/mrturcot/.local/share/Steam/ubuntu12_32/steam'
[2022-12-30 15:47:41] Opted in to client beta 'publicbeta' via beta file
You are in the 'publicbeta' client beta.
Installing breakpad exception handler for appid(steam)/version(1671501303)
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2022-12-30 15:47:41] Loading cached metrics from disk (/home/mrturcot/.local/share/Steam/package/steam_client_metrics.bin)
[2022-12-30 15:47:41] Using the following download hosts for Public, Realm steamglobal
[2022-12-30 15:47:41] 1. https://client-update.akamai.steamstatic.com, /, Realm 'steamglobal', weight was 1000, source = 'update_hosts_cached.vdf'
[2022-12-30 15:47:41] 2. https://cdn.cloudflare.steamstatic.com, /client/, Realm 'steamglobal', weight was 1, source = 'update_hosts_cached.vdf'
[2022-12-30 15:47:41] 3. http://media.steampowered.com, /client/, Realm 'steamglobal', weight was 1, source = 'baked in'
Installing breakpad exception handler for appid(steam)/version(1671501303)
[2022-12-30 15:47:41] Checking for update on startup
[2022-12-30 15:47:41] Checking for available updates...
[2022-12-30 15:47:41] Downloading manifest: https://client-update.akamai.steamstatic.com/steam_client_publicbeta_ubuntu12
[2022-12-30 15:47:41] Manifest download: send request
Installing breakpad exception handler for appid(steam)/version(1671501303)
[2022-12-30 15:47:41] Manifest download: waiting for download to finish
[2022-12-30 15:47:42] Manifest download: finished
[2022-12-30 15:47:42] Download skipped: /steam_client_publicbeta_ubuntu12 version 1671501303, installed version 1671501303, existing pending version 0
[2022-12-30 15:47:42] Nothing to do
[2022-12-30 15:47:42] Verifying installation...
[2022-12-30 15:47:42] Performing checksum verification of executable files
[2022-12-30 15:47:42] Verification complete
Loaded SDL version 2.27.0-p7718664
src/steamUI/Main.cpp (3060) : !"Fatal Error: Could not load module 'bin/vgui2_s.dll'"
src/steamUI/Main.cpp (3060) : !"Fatal Error: Could not load module 'bin/vgui2_s.dll'"
Installing breakpad exception handler for appid(steam)/version(1671501303)
assert_20221230154743_6.dmp[850]: Uploading dump (out-of-process)
/tmp/dumps/assert_20221230154743_6.dmp
[2022-12-30 15:47:43] Shutdown
Installing breakpad exception handler for appid(steam)/version(1671501303)
Installing breakpad exception handler for appid(steam)/version(1671501303)
assert_20221230154743_6.dmp[850]: Finished uploading minidump (out-of-process): success = yes
assert_20221230154743_6.dmp[850]: response: CrashID=bp-9bbb86c8-09f1-40f2-9ec2-0e5712221230
assert_20221230154743_6.dmp[850]: file ''/tmp/dumps/assert_20221230154743_6.dmp'', upload yes: ''CrashID=bp-9bbb86c8-09f1-40f2-9ec2-0e5712221230''