You don’t know what you are talking about. In OP’s case the game is not loading effectively, but it is compiling Vulkan shaders, as it’s running under Linux. That process is normal to take a while.

Proxmox host running on a Dell Inspiron laptop with a 6th gen i3 and 12GB RAM, 120GB SSD

• Home Assistant
• Jellyfin
• Sonarr
• Radarr
• Prowlarr
• qBitTorrent
• Syncthing

Home Assistant runs in its own VM (HAOS), the rest run in a Ubuntu Server VM.