Lemmy has grown exponentially in the past month, it’s frankly amazing how well it’s able to sustain the massive influx of new users, but yeah, some features like this one are dearly missed

Lemmy currently lacks the userbase for niche, specific communities, or subregional communities

No. But you can search them in the communities tab (local or global) and surbscribe to them. And if it doesn’t exist, create it :)