Google Other Calendars not showing in Apple's Mac Calendar, nor on iOS

I use EM Client for my emails and Google Other Calendars show up fine there as they do in Thunderbird. However, in Mac and iOS, I cannot see Other Calendars. I've tried disabling the account and deleting content and re-enabling it. I've tried deleting the account from Mac and iOS and setting up the email account again on both. I can see the main Google calendar just fine on both, but not Other Calendars.

BTW, this is happening on two separate and unrelated gmail accounts. So it appears to be an Apple issue.