The option to disconnect the site is still available in the app even if the site is disconnected already (via browser)

[alinclamba]

Disconnect a site from the browser, then access the site in the iOS app and navigate to Site Settings → Security → Manage Connection and you'll see the option to disconnect the site still available, which might be confusing.

Tested on iPhone 13, iOS 17, Jetpack iOS 25.1

[dangermattic]

Thanks for reporting! 👍