The Disabled Swatch style is for the variants of the Products which are disabled not for the Out of Stock variants. So, you need to have the variant of the Product not checked with the Enable option on it and then the Disabled Swatch style will work accordingly. See these images for reference: https://snipboard.io/BMehIF.jpg https://snipboard.io/NbOzfP.jpg
Ohhh..so, i will need to disable each variation? This client will have 3.000 products. What i need is the variation disabled on product archive (attached)