Hi, a small progress update,
I sent an Opera Bug report two Opera Mobile versions back then and now I see it could've started working.
Although, the My Tabs button on the Opera Desktop sidebar started showing up randomly, so currently I cannot see it at all as I saw it yesterday twice with all tabs greatly updated.
The sync.opera.com webpage has all my updated tabs and bookmarks shown, great!
It would be nice if one of the dev's could respond here if they are actually doing anything in this case and they're aware.