I’ve never seen it done like this.
What are your concerns with it?
Okay let’s add a covered deck…but, what will hold the roof up? Shoddy! 
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Where do you start, there is a lot of things wrong in the pic.
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Well, looks like the deck is supported by two lags a few nails, and picks up the other 4x4 that is bolted to the other post that picks up the roof and supported by the decking.
I’d be calling it out also.
DCA6 Prescriptive Residential Wood Deck Construction Guide Based on 2015 IRC (awc.org)
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The rear balcony is a lesson onto itself of poor workmanship.
A: The roof ledger atop the siding.
B: Guardrail Balusters secured from the top and bottom into end grain. No designed baluster support.
C: The column should have been notched to maintain one vertical line.
D: No cross bracing.
E: Decking poorly supported.
F: Joists secured at end grain.
G: Fasteners.
The provided image below exhibits a split in the column extension possibly embedding failure from poor connections and design application…
Excellent observation, a check on the grade of the 4x4 will likely show it is not even #2 grade. Rather standard or better
Morning, Charles.
Hope this post finds you well.
Stress points are relatively easy to assess, when you know were and how to look.
Mr. Cyr eloquently stated in a post, and this is not verbatim, ‘just think of how the structure, system or component is assembled.’ Brilliantly simple.
Thank you, Charles.
Keep well.
Robert
A lot of things that were already mentioned. The new method to me was the posts connected using bolts making the post completely dependent on the bolts shear strength.
This deck would have been a good one for a mock inspection or field training.
Definitely the use of nails to attach joists to "rim board’ rely on shear strength 
I don’t even know why I’m keeping this post alive 
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