How to display google calendars in public?

Question

Google

I have calendars

In my account, I can view them normally and quite understand what is there:

But in the end, I have to share each calendar individually:
https://calendar.google.com/calendar/embed?src=spl. ..
https://calendar.google.com/calendar/embed?src=g2m...
And the view is rather strange (the inscription is busy)

In general, you can somehow combine calendars so that you can see them in the public domain and so that in the general view there were no "busy" inscriptions, but were there those that are present during setup?