I've seen grocery stores around here with entire shelves/departments completely empty.I'll be honest, my family and I haven't really been affected by this. Yes I've noticed prices going up but as far as the stores not having what I need...meh. Now that could be that we aren't addicted to buying crap on Amazon. I think it's also a factor of my age ( I'm 50). I remember that sometimes stores were just out of stuff so you either picked something did without or you had to wait.
Though form the most part they have been fully stocked.