sokogear319 posts02-15-2021 8:09pm"...I believe it cleans up the power as the current goes from the wall (or a power conditioner, power strip, etc.) to the component, so the longer the cable, the more it conditions the current..."
Theoretically, the longer power cord, with more inductance, capacitance and resistance, would provide more filtering but I think the difference would be minimal at best.
The downside to the longer power cord is an increase in the source impedance of the AC supply to the components with a resulting reduction in music dynamics (bass impact, in particular).
Companies like Audioquest and Shunyata Research go to great lengths to minimize the impedance in all of their power delivery components (power conditioners, power cables, etc.) for this very reason. This same consideration also applies to their speaker cable designs. Longer cables defeat their best efforts.