It is a great feature; Windows Firewall Control does notifications nicely, too, and it's now freeware since bought by Malwarebytes. On Android I recall that th

It is a great feature; Windows Firewall Control does notifications nicely, too, and it's now freeware since bought by Malwarebytes. On Android I recall that this control was taken away from users long ago. Blocking an app's network access blocks its ads, after all. The argument was that without any other permissions, an app's potential for harm with internet access is limited. Only in Android 11 have I seen this restored, and I only noticed after digging around the settings after the major version OTA update. i.e., I don't get notified. Apps have internet access by default. On that note, I recall when Windows started coming with a firewall, people like Steve Gibson criticized its allow-all-outbound-by-default rules as making it nearly useless to protect less savvy users.