We are not getting 410 status codes from the HTTP2 service when sending push notifications. It would be tolerable if there was just a window of time until the status is eventually correct. However, we have apps uninstalled and weeks later we still receive a 200 status code for the device, though no push was delivered. This is on our production system, not sandbox. It does work, sometimes. We have 13 devices that report a 410 status code. But we have many times that amount that report 200. Given that the old feedback service is no longer supported after November 2020, this is really a pickle.