robinmetral

I don't think that this is actually meant to be a fake, it's just another variety of huangjiu that they named like Shaoxing (nostalgia?). It's probably made using the same process. I visited the Yellow Wine Museum here in Shaoxing and they actually mention Taiwanese huangjiu as one of the better varieties besides Shaoxing (alongside Fujian and others). Chinese Cooking Demystified mention other rice wines as alternatives, e.g. mijiu or sake. The latter might be easier to find in supermarkets abroad if there's only salty Shaoxing wine on offer. Their video about Shaoxing wine might be of interest to others here, since they also do a good job at explaining the difference between the four main types of Shaoxing wine (dry, semi-dry, semi-sweet and sweet).

I also haven't seen bottles marked with the vintage year, but ceramic jars can be—I've seen some for sale this morning, right here in Shaoxing. I assume that this means that the wine is still aging, e.g. if you buy a 2020 Shaoxing and unseal the jar in 2040, that'll make it a 40 year old wine. Aging conditions certainly matter so these are probably geared toward serious drinkers. But glass bottles are marked with aging years, like whisky (except there's no vintage blending as far as I can tell).