I tried to sync all tabs/history/bookmarks.
Not critical:

• Tabs haven't appear
• History either

Critical

• About bookmarks: They synced, but they were in folder Speed Dials, I expected to see them on speed dial, not in folder. Also images that I added manualy to each, didn't move from old browser.

How I reproduced:

• Entered in account in old one browser (119.0.5497.70).
• Checked sync all in preferences -> on Opera sync saw that all data was synced.
• Entered in account in new new one Air (119.0.5497.81)
• Also checked all checkboses for sync, and nothing happend. (On Opera sync still shows my history/tabs/etc)
• I exported bookmarks manualy from old one, and imported to new one. So I get only my bookmarks.

Expectations

• I expected to see ability to move tabs from old opera (installed on this pc), but saw only edge/chrome/html.
• After entering account expected that all data will migrate automatically.

Thanks for the really good browser!