News map (from:Microsoft)
The company stated:
It should be noted that submitting an updated application package to the Microsoft Store is not affected by the processing time of this improvement, so it may take up to 3 business days.
If there is no update package, the change is refreshed within one hour of the completion of the authentication process. If you have experienced a delay of more than 3 business days, please contact us for mediation.
Although the application package verification time is longer, Microsoft's schedule is still relatively good.
With an accurate release schedule, you can set your app to be published at a specific time based on UTC or local market, or even specify different times for different national markets.