I am glad this worked out for you as i have done this several times. Also Can you please mark my reply as answered or mark "This helped me" as Yes as it will benefit other users on the forum facing the same issue.
Done. I think only OP can mark as solved, but I've marked as helpful!
I have exactly the same issue!
It seems that "?:embed=y&:linktarget=_parent" or "linktarget=_self" logic needs be to part of the initial link after the workbook is first published.
Have you found any solution to this issue so far?
This does not work for me. I have tried with all combinations with self/parent but none seems to work.
Is there any other way apart from frame.
This is a different Tony, but the steps outlined here seem to work for most: Opening dashboard links in same browser window