After analyzing the features of this solution, I have to give up. There are problems such as:
-The search engine does not see the products
-On the list of categories, it shows a photo of the main product, not a variant – which eliminates the possibility of using it for color variants 🙁
Instead, I found a plugin, WPC Linked Variation from the description meets all my requirements, but for some reason it does not work on my website. I don’t know if it’s because of the theme or because of bad configuration, but I’m willing to pay someone for help with integration.