Finally, Nosotros has probably my favorite UI of any Web client. Simple, uncluttered, but reasonably easy to access what you need. However, lots of basic features still aren't present. For instance, "@" mentioning in composition window, which on most clients pops up a general search of all npub's, ...

If you try https://jumble.social/, you will never want to user other Nostr client. nostr:npub17n4cuc4d6y6qh89dekvxrenfkt5s0n49xns00uavjaxpr36c55dq87fyh9