Many players experience Checking Resource Integrity every day. Moreover, some of them even report that ZZZ gets stuck during the process.
Checking Resource Integrity starts to irritate many players, as it seems that the loading takes place almost every day. Why is that? Probably Zenless Zone Zero starts the process every time the update is installed, even the smallest fix. We have to take into consideration that ZZZ has been released just a few days ago, and developers adjust various elements. We may expect that at some point integration will be not as big issue as it is today, returning only in the case of major updates. However, for now, we have to be patient.