Your system information

• Steam client version (build number or date): steam 1.0.0.85-6
• Distro: CachyOS (Arch-based)
• PipeWire: 1.6.4
• WirePlumber: 0.5.14
• lib32-libpulse: 17.x
• GPU: RTX 4090 + AMD iGPU (RADV)
• Compositor: Niri (Wayland)
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

Steam crashes on launch

works

PULSE_SERVER=invalid steam

fails (normal case)

steam

Observed behavior:

Steam segfaults in steamui.so

Stack includes:

libpulse.so
libaudio.so