Welcome to nostr.

Nice video.

I suggest using Get Alby's extention to login. I use the extention with the Kiwi browser on Android. Spring Browser is also good, but I only use the Android Open Source Project. I don't know much about iPhones.

Extensions make it easier to login to multiple clients. Here's a great list https://nostr.net/

Nostr is a new Internet that's more like the old web. There are video clients like flare pub and you can talk to people on corny chat.

You can even use HiveTalk as a replacement for Zoom.