Aggressively block every community that has to do with news or has news posted to it. Then, if you’re on a mobile app that supports keyword filtering, aggressively filter out every word of news you don’t want to see. Then aggressively block users if they post or comment news you don’t want to see. After doing that for a few weeks or months you’ll start to see a normal newsfeed. But Lemmy is nearly unusable without it.

This is the strategy I use to avoid contact with a people group from a specific shithole country and it seems to work decent. Although there’s always posts that sneak through the cracks.