Contacts still not syncing - Big Sur, iOS 14.8
I've read everything I can find about syncing contacts between a Mac, an iPhone, and an iPad, but I still have contacts on my phone that don't show up on my Mac, contacts on my Mac that don't show up on my iPad, etc. etc. etc.
Mac OS and iOS all up-to-date. I'm signed in to my iCloud account on all devices. I've dragged down in my Contacts to (theoretically) initiate a sync. Still no joy.
Does anyone have any reliable way to make this simple task work reliably on the most recent Apple devices?
Thanks,
Myles
iPhone 12 mini