What is it?
Yandex DataLens is a business analytics service It lets you connect to various data sources, visualize data, create dashboards, and share the results. With Yandex DataLens, you can track your product and business metrics directly from data sources to make data-based decisions.
Documentation available here:
https://cloud.yandex.com/en/docs/datalens/
You made a statement that yandex is not Russian company any more and partially belongs to Ukraine. This is bullshit. Read Wikipedia article about yandex, it’s “золотая акция” (golde stock) and who owns this “stock” noe, read about its official status of critical company for Russia. Then go to russian IT communities and read how yandex became more and more “controlled” by the government.