AntiX (based on Debian) is the only distro I know of that is developed by vocally anticapitalist leftist devs, even putting “proudly Anti-fascist” on their main page.

They also are one of the few distros to take an anti-LLM stance (though with Debian itself being pro-AI now, it remains to be seen how far they will go to avoid new LLM contributions made to the Debian base).