my 2 cents - i think Primal is approaching the NOSTR client space the best at the moment

as cool and open as the NOSTR protocol is to run a multitude of apps, websites etc to interact with, the vast vast majority of users will likely lock into one client for all their hosting, wallet, and feed needs

integrating all these features seamlessly into one client is expensive, might require KYC and some regulatory oversight, but it will ultimately win users and creators over

creators are the bread and butter for NOSTR - whatever single tool makes it extremely fast for them to interact and share is ultimately going to dominate market share

the other options for privacy are good to have and are essential for freedom but the growth engine for NOSTR will likely come under the umbrella of vertically integrated apps/clients that touch the bitcoin side