I FOUND A WORKAROUND WITH CLAUDE FOR THE STEAMDECK. here you go-
First run this command in terminal:
cat > /home/deck/dxvk_spoof.conf << 'EOF'
dxgi.customVendorId = 1002
dxgi.customDeviceId = 687F
dxgi.customDeviceDesc = AMD Radeon RX 580 Series
EOF
Then run this:
DXVK_CONFIG_FILE=/home/deck/dxvk_spoof.conf
at this point I am assuming you have added the plutonium.exe as a nonsteam shortcut in steam, so after that add this launch parameters DXVK_CONFIG_FILE=/home/deck/dxvk_spoof.conf %command%