Compatibility Report

• Name of the game with compatibility issues: Proton 6.3
• Steam AppID of the game: 1580130

System Information

• GPU: AMD Radeon RX 580
• Driver/LLVM version: [LLVM] LLVM 11.0.1, [Mesa] libglu1-mesa-dev (9.0.1-1)
• Kernel version: 5.10.0-10-amd64
• Link to full system information report as Gist: Here
• Proton version: 6.3

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
• [x] that I have checked whether there are updates for my system available.

Symptoms

Unable to install Proton 6.3 itself. Cloning hangs on /gst-orc, using

git clone --recurse-submodules http/https/git://github.com/ValveSoftware/Proton.git Proton_6.3

or opening the Linux port of GithubDesktop (Here) and cloning it with ValveSoftware/Proton

Reproduction

Run

git clone --recurse-submodules http/https/git://github.com/ValveSoftware/Proton.git Proton_6.3

Wait for it to reach the GST-ORC module

Cloning into 'home/source/Applications/Proton_6.3/gst-orc'...

Git is now stuck trying to clone, using ^C is the only way to quit

On ^C:

warning: Clone succeeded, but checkout failed.
You can inspect what was checked out with 'git status'
and retry with 'git restore --source=HEAD :/'

Notes

Checking the homepage seems to show gst-orc @ 9901a96, gst-plugins-base @ ce69d10, gst-plugins-good @ 941312f, gstreamer @ eacb7aa, and vkd3d @ 5dc544e unattached from the repository