No, VG consists of nearly only glycerol and water, and the glycerol "fatty-acid-backbone" is the same regardless of palm-kernel,palm-fruit, soy, rapeseed, sunflower, corn, choconut etc derived glycerin. Many manufacturers actually swap out the feed-stock from batch to batch because of price-incrices from crop to crop....
If wanting best quality then look instead for glycerol purity and water amount... However, all USP VG is pretty close though and choose whatever...