@leocg sorry but that's incorrect, I've recovered my bookmarks from Bookmarks.bak backup file on Opera Profile path on my device, so it was possible.

I was testing opera sync on one device and didn't like it and turned it off, then deleted the bookmarks on machine 1, even though the sync was off it deleted the bookmarks on machine 2 too (I deleted from the bin as well), now I can't access the bookmarks on both of my devices, I've had a ton of bookmarks, is there a cache, can anyone help me with this?