I have read everything from one end of the spectrum to the other.
Sometimes you need to take the dormers with a grain of salt ( you will need that salt to preserve your pickles!)
Nothing in the list is bad, nor am I suggesting you not prep. A couple of weeklong ice storms woke up my family a few years ago. It is easy to fall prey to real terrorizing doom porn.
Read more than one source and read the rebuttals from the naysayers. You will find EMPs could hurt limited areas and really screw up cities. Are they going to shut down the entire country? It’s a low probability.
The folks who would do these kinds of attacks would use their nukes tactically, not strategically.