i did not find your correspondence games with you playing the black side aggainst Nxf7.
The first one is not worth anything- the opponent (who sadly has passed away) blundered very early.
In the second one, the opponent also did not play well.
In short, I won both games because white played badly, but the verdict stays: 5.Nxf7 is a genuine lemon.

Preusseagro please. Could u think a bit before asking?
U can use an engine as well.