I haven't heard about that at all
That's the entire point of why tankies like me bring up such topics. When Europeans insist in the "superiority and democratic rule" of Europe vs. say China, it's because we remain oblivious to the sins of our own countries while we're constantly bombarded with propaganda against socialist projects. You can get started with the Wikipedia article on Occitan Language if you're interested.
I don't care what France is doing when I'm talking about China
Thats the entire point. There is immense propaganda about China while we literally don't know what happens in the neighboring country. If there were an equal amount of contributions in .world about repression of Occitan as there is about China, I would make it less of a point to bring it up constantly. It's not deviating, it's not letting anti-China discourse dominate in the platform