yeah :(
"There are only a few search engines with their own search index - currently Google, Bing, Yandex and Baidu. The other search engines work together and exchange data with these companies in some form. We are currently working with Bing and are very transparent about the cooperation."
https://swisscows.com/ru/pryvatnost 

 Brave Search and Mojeek have their own indexes, including their own image indexes.