You can use this to check what info your #nostr client leaks:

https://whodis.fyi/data.png

nostr:nevent1qqs84xhkzsxqskh77lnmv3u9cqa8079gt42d7dh3ed77pzy2uzwsj4qpzpmhxue69uhkummnw3ezumt0d5hsygzxpsj7dqha57pjk5k37gkn6g4nzakewtmqmnwryyhd3jfwlpgxtspsgqqqqqqs4lc7gj

From:
nostr:nevent1qqs8xwy0l4k47lh563es2l5rtzk9yhe3hd5jywceh8mt39f78ty8weqpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtczyzu0pauuz6yd3083duen5tzkz73v8y65d89m6nkw8xy9dvdr7lhwqqcyqqqqqqgt0pxx0