If it works with DXVK on Windows, then why do you think it's a DXVK bug?
Please post the full wine log, this is almost guaranteed to be something like a missing library in your wine prefix.
@mimattr Can you test this again with newest proton/dxvk/drivers? I don't have VR if that is needed to test this.
@mimattr Friendly ping
Further to [#2954](https://github.com/ValveSoftware/Proton/issues/2954) the application fails during launch using DXVK on Ubuntu 18.04 LTS but works as expected using DXVK on Windows 10.
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