As a matter of fact, YES! On the rare occasions we buy junk food I now avoid Walmart entirely because it tastes like cardboard. I've definitely noticed this at McDonalds too... it was so bad that we complained to their management.
Maybe McDonalds had to agree to cut the salt in exchange for an Obamacare waiver. The only thing I could stomach there was their breakfasts & now they’ve lost me on that.