The scars and wreckage are everything that happened during Secret Empire. None of it was wiped away. I can interpret "wreckage" to be the deaths, as well. It's all of the physical damage he did. I believe the point of the upcoming Cap series is that Steve is going around trying to absolve himself.
At any rate, there is still no suggestion that any of the deaths were undone. And we do see Nat's funeral.
It makes some sense if we're to live with "never forget."
Was it Nats funeral, or was it the funeral of random redhead A)?
I would have expected a bigger deal to be made of Nats death, or at least see a recognisable face in the crowd, or are we just putting this down to a lame artist doing a lame job of giving one of marvels most important female characters a decent send-off?
If it is Nats funeral then I'll put money on that being an empty casket, and expect us to see a story in the near future where her death was faked so she could do some sort of undercover stuff, with the explanation that she was resurrected by Kobik all along.