From what we've been able to find out, it looks like the TU score from Walmart is the FICO TU08.
Yes, it's a FICO score, but no, it won't match the TU FICO score that you pull here, or the score that a mortgage lender might pull (probably a TU2004.)
It's exasperating, but true. There are lots of FICO score formulas, each tweaked for specific situations, and yes, they're all "real", and no, they don't match well from one to another.
And NONE of them reliably match/ translate to a FAKO score. Every now and again someone posts a match between a FICO and a FAKO, but I'm afraid that falls under the category of "Even a blind squirrel finds a nut every now and then." In other words, pure randomness.