Change is uncomfortable. There's just no way around it. And there's nothing wrong with you feeling that it's kind of empty here and not what you're used to.
For me, it will be uncomfortable regardless. My preferred interface (RIF) is gone in 2 weeks so nothing at Reddit will feel comfortable either.
So I've chosen to embrace the discomfort of Lemmy's newness and comparative "emptiness" over the discomfort of using Reddit's inferior app, for a couple of reasons: First, Reddit turned on us, not the other way around, and second, because this place is relatively new it's not littered with bots and spammers and trolls. The energy here is just better for me.
Even if all my favorite places and posters aren't here yet, I'll be here waiting for them when they arrive, and I'm the meantime, I'll be doing my part to recreate what I used to love there, here.