500+ on this peertube instance.

https://peertube.su/c/soviet_cartoons/videos?s=1

Your best bet is russian torrent trackers, like rutracker (you'd probably need to use a VPN though).

You could also check the russian social media platform VK for a dedicated group, but I don't know what state it's in (haven't used it in almost 10 years). The owners also have ties with the russian government, so use it at your own risk😅

Wow mate, no idea, I struggle to even finding cartoons on Spanish Latin 😂

Good thing most of them came back thanks to Max, is Max even a thing on Russia? lol.

Try search engine yandex.ru, it's perfect for piracy of anything in russian language.