I suppose a particle of 4chan was always part of every redditor, but now that a lot of the older power users left and it became a designated content farm, all bets are off.

Been a long-ass while (years) since I was on 4chan, but I'd say if anything- default/mainstream subs on reddit make 4chan look balanced and almost (still not really) rational, usually, nowadays. Perhaps mainly due to how rabidly effective reddit is, as a platform for manufacturing narratives and stifling dissent, and how compromised it is (and always was- though it got even worse) as a result.