I think that it would be a lot easier (and less error-prone) if I were to add the subscriptions to our iCloud Family Sharing Calendar and then invite each of them to join.
UPDATE: July 9, 2022 9:10 PM
Apparently, the only way to add a calendar subscription to the iCloud Calendar is to subscribe to it on a Mac choosing iCloud as the “location” of the subscribed calendar:
But, I presume that this makes the subscription available in my personal iCloud Calendar alone, not the Family Sharing iCloud Calendar. I further presume that my macOS Calendar must be open in order to synchronize with the URL subscription and thereby update the iCloud Calendar. I don’t use macOS Calendar; I use Google Calendar.
I didn’t actually try it.
It’s too complicated. I give up. I’ll just make each individual subscribe to multiple calendars on their iOS Calendar.
Here’s what shows for me … I don’t see a way to add a subscription from this screen. (“Show” and “Hide” simply toggle whether an existing calendar is displayed/overlayed; they do NOT provide a way to subscribe.)
On my phone, on the same level as “show all”, to the left, there is an “add calendar” control that lets you add a new calendar or subscribe to a new one. I sync calendars with iCloud. Are you syncing calendars, and, if so, with which service?
My iOS (and macOS) Calendar syncs only with Google Calendar. I do NOT use iCloud for calendars (or contacts) whatsoever.
I guess that iOS Calendar is more tightly integrated with with iCloud Calendar than with Google Calendar. Most likely this explains the discrepancy between what I see and what others on this list are seeing.
Thank you for asking and clearing up the confusion.
I also use Goggle Calendar for work, but I also have a personal iCloud calendar that my iPhone displays alongside. Perhaps that’s why it’s showing for me. ??? Doesn’t make any sense to me though because I actually used exactly that button in the past to subscribe to another G calendar. At work we have many different G calendars for different projects. I usually subscribe to a couple of those and that button is what I use.