Could be fake? Or... it could not...
Whichever
I saw the Shroud of Turin on display in Atlanta, Ga around 1980.. I remember impression marks where Jesus was wrapped, and didn’t consider it blood, but sweat, etc from hanging on cross. There would have been blood from Crown of Thorns, no doubt. The Shroud of Turin has caused many scientists, who were skeptical to convert to Christianity, when in contact with it. The power of the Shroud is spiritual....
Experts come and go, and I don’t put much faith into what they say!