> There are claims that this new form of meth is chemically different in some what that started creating schizophrenia around 2017.

You are off by 8+ years ... P2P made meth became mainstream after 2008 because that is when Ephedrine was banned in Mexico [1].

[1.]https://www.justice.gov/archive/ndic/pubs31/31379/meth.htm#:....