What are your opinions on the variability of Yandex?

[MapleMoon]

Yandex may not be as popular as Google, but it is still a search engine after all. However, I noticed a recent innovation that caught my attention. Let's say you type in any keyword, for example, "sunglasses." The search results appear in a certain order. When you refresh the page, the results change. Sometimes, the ranking changes completely, with new sites appearing instead of the ones in the top two positions.