@bishop148 nope, that is not all that matters. Everything can matter to power cable performance from the type and configuration of the conductors to the dielectric or insulation material to the connector design and materials used, to the gear being connected and the configuration of that gear and all the cables in the room to how good the power is out of the wall and if or what kind of power conditioning is employed.
Many audiophiles hear differences between power cables and often find some power cables improve the overall sound of their systems when connected to certain gear. But it is hard for anyone to tell you how a particular brand or model of power cable will sound to you with your own gear. Best to do as suggested above and try some different cables in your system and see if any float your boat. There are pages and pages on this and other sites of posts on this topic. I suggest you do some searching and learn to sort marketing hype from empirical experience and results.
For me, the differences I hear between different power cables in my systems are often not subtle. But if you can’t hear a difference between different power cables, then it doesn’t matter to you in your room with your system, and you return them or sell them and save some or all your outlay and chalk it up to experience.
YMMV
kn