So angry with opera sync. Lost all my tabs twice.
Accidental closing of all tabs, and hey I remembered we have sync.. well guess wat , the intelligent system synced with the web. And of course now both ends have 0 tabs. How clever.
Either make sync more intelligent or have a dialog "I noticed u closed all tabs, are you sure ?"
Opera sucks big time regarding open tabs. Pls buck up. And stop the AI nonsense. Nobody will use it .

Sync should be a reliable safeguard, not a cause for additional problems. It would be great if Opera could make sync more intelligent and add a confirmation prompt when closing multiple tabs.

I hope they address these issues soon. Meanwhile, you might want to consider using extensions that help manage and save your tabs to prevent this from happening again.