It matters more, in my opinion, for stuff like pizza because there isn’t already flour. The melting is noticeably different between shredded mozz and a block of low-moisture you cut or shredded yourself. But for cheese sauces and stuff I agree there isn’t really a difference
That if you weren’t part of “our” religion (my family’s religion, Catholic), you were basically living your life wrong and were an awful person. When I went to college I met people who believed different things, including in nothing, and I realized they were not, in fact, terrible, almost subhuman, people. I quickly changed for the better and that’s one of the best things to ever happen to me. It’s amazing how accepting you can be when you just accept people for who they are