Missing calendar view options on iPhone 15 Calendar app

iPhone 15

When I hit the button to change the monthly view on the calendar, I do not have the option to change to compact, stacked or details. When looking at the monthly calendar, all I see are dots in the days when I have an event. If I hit the menu button that should say compact, stacked or detail, no menu appears. It simply changes from that particular month only, to two months.

[Re-Titled by Moderator]