Fediverse

There isn't at all. Reddit is liberal at the very best and even then it's mostly Obama liberal, which is center right outside the most conservative parts of the world.

The leftist communities are much smaller, easily ignored, and often ridiculed in the mainstream subreddits. The gaming spaces complain about "wokeness" and criticisms of female representations among others. Thinly veiled racism and explicit transphobia abounds.

In contrast, Lemmy is full of anarchists, communists, socialists, and other anti capitalist. It has been and remains a dominantly leftist community.