How to completely reset Safari iCloud tabs on MacOS and iOS devices?
I have two Macs, an iPhone and an iPad. Each of these devices has, for one or more of the other devices, a list of Safari iCloud tabs that does not reflect the tabs actually open on the device.
For example: My iPhone shows five tabs open on my main Mac. My iPad shows three - a different three. And my second Mac shows 30+ tabs open on my main Mac. The correct answer is one: this page I'm typing upon.
Another example: My iPad shows two tabs open on my iPhone. My Macs show one. The correct answer is one.
If I try delete one of the zombie tabs from another device, it immediately re-appears.
What I'd like to do is completely reset iCloud tabs - delete them all. There is no important data to lose here so I'm OK with this.
How can I do this?