https://www.intgovforum.org/en/content/dynamic-coalition-on-childrens-rights-in-the-digital-environment They were at the IGF a few years ago, it seems to defend end-to-end encryption. I don't get why they couldn't just launch a conventional civil liberties org.
Also: https://www.intgovforum.org/en/content/igf-2020-village-booth-2-prostasia-foundation