iOS 15 iCloud Tabs and Keychain Issues

iCloud Tabs don’t t show up on iPhone 11, but MacBook and iPad working fine between the two. Conversely, Safari tabs open on iPhone do not show up on either device (MBP/iPad).

iCloud Keychain active on MBP/iPad, but cannot activate on iPhone. Toggle it on, it’s shows progress, but it loops back to On/Off screen.

Safari on iPhone 11 freezes and unexpectedly quits when trying to register new password on a few websites.

iOS Devices are running 15. MBP is on Catalina with all security updates current.

Logged out of iCloud on all devices and changed iCloud password. Logged back in. Turned services off and back on for all three. No change.

tough it out and wait for subsequent iOS release/update or take the hit and Factory Reset and install previous iOS version backup from before installing 15?