Your system information

• Steam client version (build number or date): 1.0.0.66-1

• Distribution (e.g. Ubuntu): Arch
  Kernel: 5.8.12-lqx2-2-lqx asco patch
  CPU: Ryzen 5 3600X
  RAM: 32gb
  GPU: RX 5700XT Mesa 20.1.8-1 (Primary)
  GPU: RTX 2060 nouveau vfio-pcie

• Opted into Steam client beta?: [Yes/No] No

• Have you checked for system updates?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

Describe what you expected should happen and what did happen. Please link any large code pastes as a Github Gist

I come home from work and steam segfaults on launch. running steam in terminal flashes the steam update ui and then proceeds to segfault.
Reinstalling Steam/wiping steam seems to do nothing. steam --reset rebuilds then segfaults.

A day before this i was working with libvirt pcie pass-through. I had to used a patched kernel to get the stuff working, but i do not think it is kernel related because i tried switching to a stable kernel. I'de really not reinstall my system, so any help would be awesome. thanks

gdb backtrace
journalctl snippet

full 'steam' output

just ask and I'll supply any extra logs asap

Steps for reproducing this issue:

1. Launch Steam.
2. segfault