Yandex is a Russian company with HQ in Moscow. Some of the revenue from games on Yandex will through taxes end up as bullets fired at Ukrainian soldiers and civilians.
Yandex used to also provide news services, but these have apparently been sold to VK, which is at least a sign that Yandex is trying to distance itself from involvement in propaganda, but still…
Note: We have a lot of Defold users of Russian descent. I have nothing against any of you.