What Reddit equivalent of social media do Japanese people use to discuss gossip, news and current events? With recent news (earthquakes, mt fuji eruption, economic warfare) seeming to target Japan all at once these days, I’m curious to see how Japanese people are responding to things

I know they use Line a lot, but it's mainly used as a messaging platform and has some news. However, from what I've read it doesn't do reddit style engagements where people discuss things with one another. I hear they use X too, but according to social media stats the proportion of people using the app is quite low. Youtube, tiktok and instagram are used a bit, but not everyone uses them and they aren't discussion forums– just general social connectivity and entertainment tools. They virtually don't use Reddit. So, what's their Reddit equivalent?

Which platform(s) do they use to troll, talk cats, and spread political opinions to the rest of the world?