@adamhm from GOG made a nice wrapper script for automated Wine configuration for TW3 for Linux:
https://www.gog.com/forum/the_witcher_3_wild_hunt/the_witcher_3_for_linux
@Snowflakez - you might be interested.
https://www.gog.com/forum/the_witcher_3_wild_hunt/the_witcher_3_for_linux
@Snowflakez - you might be interested.