Yes you can with this widget: https://appstore.home.mendix.com/link/app/56183/Finaps/EnumSelector
if the list dynamic a enum is indeed not an option.
Knowing that when you have a dynamic list, you are using a association between the list object and the displayed object in the dataview. So setting the default value must be done in the step before/towards the open page. Thus determine in a microflow the default value (object with the correct value) and set association between the object to be passed to the page/dataview and the “ default value object”