I haven't been able to find the exact name for this.
In iOS 26, there's a widget called "New Reminder" in Reminders app among the Control Center widgets(Action Button also). In the Shortcuts app, name is “Show quick reminder.”
It doesn't seem to be either the input window that appears when requesting parameters or the snippet view.
Is it possible to implement the sheet that appears after tap this widget button?
I've looked through the relevant documentation and WWDC videos but haven't found anything.