Not all of the rules. IDK about EBT but there is a lot more variety for medicaid at least than you'd assume once you look at how jurisdiction to jurisdiction differs in terms of dental coverage, or whether medicaid was expanded at all (some states still haven't).

In some states you can't even get dentures under medicaid until you have a mere 4 teeth left.

Also some states allow for medicaid buy-in and some don't.