When you file to adjust you will receive a NoA, that is basically the document that keeps you safe.
When you file to adjust you may be considered a resident in your State, check DMV web site they are all different.
https://dmv.nv.gov/dlresidency.htm Looks like you may be OK with the NoA.
EADs I still say 6 months, there are always outliers, I have seen some get it very quickly.
Sorry I typed this but never hit the go button!