Do I have Bimaxillary Protrusion? (Photo)

According to the x-ray, is it possible for my upper teeth to be pushed backwards with just upper braces & w/o surgery, as it does not affect my daily activities? Currently, I am on braces for my upper teeth (it has been 2 days). My orthodontist suggested lower jaw surgery for a perfect straight upper teeth side profile. What are your best advice? FYI: I have a straight upper & lower teeth with no overcrowding, but with just a slight gaps in my left side profile upper teeth.

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