The post is from 2018, so dxvk either wasn't there or was too immature. From today's point of view, the post may not be that interesting in the practical sense

The post is from 2018, so dxvk either wasn't there or was too immature. From today's point of view, the post may not be that interesting in the practical sense of running the game. But some might find the obscure feature of custom clip planes interesting, or how a change or a detail in API specs lead to a regression. If course today you'd want to use dxvk.