I Phone 14 share calendar with android?

Share a read-only calendar with anyone --> Share iCloud calendars on iPhone - Apple Support (IN)

1. Tap Calendars, then tap  next to the iCloud calendar you want to share.
2. Turn on Public Calendar, then tap Share Link to copy or send the URL for your calendar.
3. Choose a method for sending the URL—Messages, Mail, and so on.

Anyone you send the URL to can use it to subscribe to the calendar using a compatible app, such as Calendar for macOS.

Where are calendar events stored? Not on iCloud?

You have not mentioned where your calendar events are? Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other

Refer to the pic below, you may get your answer

Which is your default calendar? Settings > Calendar > Default Calendar

Settings > Calendar > Sync > [All Events] - Watch the GIF below

This thread might help you: How to sync iPhone calendar with Android … - Apple Community