Perhaps this is no longer a concern, but recently Opera updates have been subject to migration corruption issues, wherein upon installing the updated version the user would be faced with a loss of various personalization items, or all of them, bookmarks, tabs, extensions, etc. FWIW, I did install this new version: 104.0.4944.54 and didn't encounter any of that, on two Windows 10/64 computers. On the more sketchy computer, I did have to close and reopen the newly installed browser before it showed my personalization, but that could easily be due to the computer, and both are working fine now, with respect to (wrt) personalization, for me.
