Oh damn, you’re using the snap version of Steam, this is unfortunately outside of my area of experience :(
Some key error messages I see are:
<span style="color:#323232;">/home/pokko/snap/steam/common/.local/share/Steam/ubuntu12_64/steamwebhelper.sh: line 53: /proc/sys/kernel/unprivileged_userns_clone: Permission denied
</span><span style="color:#323232;">/home/pokko/snap/steam/common/.local/share/Steam/ubuntu12_64/steamwebhelper.sh: line 60: /proc/sys/user/max_user_namespaces: Permission denied
</span>
and
<span style="color:#323232;">flock /usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf LOCK_SH failed. errno = 13vkEnumeratePhysicalDevices failed, unable to init and enumerate GPUs with Vulkan.
</span><span style="color:#323232;">BInit - Unable to initialize Vulkan!
</span>
You’ve got permission errors and a GPU driver issue somewhere, likely related to the permission errors. The flock errors stand out to me also, as they are fonts. Maybe required fonts for the game to run?