Pavlov

wgpierce

Using the latest Monado/OpenComposite/etc., and setting up OpenXR properly according to https://monado.freedesktop.org/valve-index-setup.html#3-configure-the-openxr-runtime (I used that guide in its entirety instead of Envision to make sure that every step worked correctly.), the game takes a minute to launch, but otherwise runs great under Monado.
I also used proton experimental to make sure that all the EAC bits worked correctly, which I had no problem with.
The game is a stuttery mess under SteamVR, like most games under SteamVR.

Alex52Github

I recorded test gameplay here and here.
What I got were really bad stutters/freezes/disconnections every 10-30 seconds (both display and controllers), with great performance in between: perfect latency and clarity/resolution. Also, there's a bug in the menus where only touching the trigger registers as a click instead of actually pulling the trigger, as yayameowmeow mentioned. Arguably the performance is not usable, but it still boots and runs, I would just suggest using ALVR instead until it improves.

yayameowmeow

Works nearly perfectly, hovering over menu options and putting your finger on the capacitive sensor will count as clicking though, in game gunplay works fine and stable.

patrlim

ALVR was nigh flawless
WiVRn straight up doesnt work

PassiveLemon

Server gets spammed with:

WARN [wait_semaphore] Waiting on client semaphore value '1' timed out > 100ms!`

The game never fully starts and just sits on a black screen.