For the average new user on nostr, choosing to use "open source apps" is as important as choosing to use nostr.

You will see a lot of people on nostr are programmers... and that may not interest you, but one thing to keep in mind is when they say this app or that app is closed source, that's an indicator that even if it looks better than other apps, it's not helping the people at large. I kindly ask the closed source developers to consider opening your source. (LIKE PRIMAL.NET JUST DID!) Nostr will grow much faster if it's open becuase there are vast skillsets out there, and the more apps that are open, in different languages, the more engagement will increase... solving problems at lightning speed.

Use apps that reflect your values... hopefully freedom of speech and open content are such.