How do I use it? Do I search for the community in-app once I see it there?

I’m still having a bit of trouble using Lemmy. I have Jerboa on my phone but I can’t use it right now, it says something about a version lower than v0.18 and trying a different instance and I can’t log-in on my phone’s browser because the circle just keeps spinning. I’m on my laptop and I feel like if I log this out, I’m gonna have troubles logging in again.