6-ft Black Cable one_size vs USB-C to USB-C Cable 2-Pack: which is safer?

Where these two actually differ

• We flag Phthalate plasticizers in PVC jacket and Jacket degradation and copper wire exposure on the Anker and not on the Anker.
• We flag Copper conductor corrosion and oxidation, Thermal degradation of PVC jacket and Microplastic shedding from jacket wear on the Anker and not on the Anker.
• The Anker is PVC or TPE cable jacket, copper wire where the Anker is PVC outer jacket, copper conductors, standard connectors, which is most of the difference in these two grades.
• These two are level, close enough that price and fit should decide it rather than our grade.