Pixel artist is such niche role to have, pixel art is only really ever used in small indie projects but even then it's just better to hire someone who can do multiple art styles because it's more important to be flexible than be good at ONE really specific thing.
Viewing post in I love making pixel art, but not the career
True, very true... but that's also hard to achieve, if not harder. I think many artists wish they could draw any art style very well, but the risk that comes with trying to do that is split focus and just becoming "meh, ok"at each art style... and when artists are just ok but not great at any art style, there are plenty of other artists who are niche-ing down the best they can, coming out above in the algorithms. At least this is what I would assume.