Bolt torque discussion

I watch some guys doing head bolts, main bolts, and head bolts not lubing the washer and bottom of the nut where it’s probably most important. When I torqued my aluminum rods in my 572 I called the and they gave me a number. I was told to slightly snug the bolts and go to full torque on one pull and move to the other side. That was different.
Or the guys that dip the bolts in oil and stuff them in the caps. Oops!