It might be pretty simple, if it's just a protest banner and an information website as Reuters said. You can't see TikTok's issue tracker but you can read the Wikimedia Foundation's tasks to implement the Wikipedia campaigns about SOPA and the 2019 EU copyright directive.

https://phabricator.wikimedia.org/T203095

https://meta.wikimedia.org/wiki/English_Wikipedia_anti-SOPA_...