There isn’t a Public URL anymore, it’s your replit.dev URL (just a local host like VSCode). This is because of recent changes to hosting and removing Legacy Hosting. The local host URL can only be ran while in the editor, if you want to have it run outside of the editor you will need to Deploy. Additionally repl.co no longer exists, once you deploy it will become a replit.app domain (unless you connect a custom domain through deployments).