You can export any event into your personal calendar.
Navigate to the event hub and click on the "⋯" button next to event title. This will open a context menu. From there, you can choose "Add to my calendar" to download an .ics file.
You can import this file to a calendar of your choice.
Every user who can view the event can export an .ics file. You do not have to be a participant to export the event.
Link to this page: https://seibert.biz/manualeventexport