No, communities from all over the instances are listed, but not all of them. I can't see any pattern here.

Same here. On the web app the community is listed as subscribed, but not in Memmy. Maybe an API thing.

Did you sign an NDA?

Memmy is such a great app. Thank you for your effort and the countless updates. I am really digging it and it makes the lemmy experience so much better.

Also the line spacing in comments should be a tiny bit higher.

I am afraid of exactly this!