still not working for me in big sur and iOS 4.3. When it broke it broke for everyone at the same time. And now when it’s “fixed” seems to be only for a few
I am not saying this is a fix, but it did get my Catalina working.
And don't worry you won't lose your history or bookmarks.
quit safari, wait an hour
then unchecked safari in icloud,
waited a day
launched safari and let that sit for a day
quit safari
then, the next day
went into icloud (sys pref)
checked safari icloud
DIDN'T open safari (left closed and quit'd)
waited a DAY (after enabling icloud safari)
launched safari and let sit for over a day
did on all machines
they all work except High Sierra (but History and Bookmarks are there, go figure!)
Good Luck!!
p.s. what sucks is if you have a ton of stuff in (iCloud) and 3-4 machines, you gotta give iCloud time to get up and running. What's great is once this pig starts working YES it does get to "DON'T TOUCH IT" status, but hey...
I have a server that I sync with my house, and it's 8GB of data, but once I get the initial 8GB, the backup process takes like 60 seconds, cause it just does the "small" changes and not the whole enchilada (8GB)
2¢