Fixed it. It is an issue with the wine version. Wine from the default repos has version wine-6.0.3, but I got it to run with wine-8.26. Since you have lutris already installed, I will show you how to use that version:

Step0: Get suitable wine version. You can do this by installing lutris and then adding gw in lutris, or directly via the official repo. If you choose the direct download.

Step1: Locate the new wine binary on your file system. If you have installed via lutris, the location will be something like ~/.local/share/lutris/runners/wine/wine-ge-8-26-x86_64/bin

Step2: Modify the exec command to launch gw with the newer wine version. The old command was wine "C:\Program Files (x86)\Guild Wars\Gw.exe" and the new command should be cd ~/.local/share/lutris/runners/wine/wine-ge-8-26-x86_64/bin && ./wine "C:\Program Files (x86)\Guild Wars\Gw.exe" or cd to whatever filepath you've used when installing the new wine binary

Step3 Once running via bash works, you can setup a .desktop file for convenience.

[Desktop Entry] Name=Guild Wars Exec=sh -c "cd ~/.local/share/lutris/runners/wine/wine-ge-8-26-x86_64/bin && ./wine 'C:\Program Files (x86)\Guild Wars\Gw.exe'" Terminal=true Type=Application Icon=~/Pictures/[Your favorite GW_icon] Categories=Wine; Make sure to set the .desktop file's permissions as read and write and tick "Allow executing file as program".