Nostr is a public network. Any software can access it. It's not difficult for a web browser replace ICANN DNS by Nostr DNS.
Agreed but like I said as it stands so fare right now and if we don't find for change ICANN DNS will still rain supreme
Brave browser already implements decentralized DNS service providers, e.g. if you type hashoshi.crypto it uses a decentralized DNS system.
Yes it does but it not 100% yet it does not always work