From what I've seen of this new dress code the baristas aren't allowed to show collarbone and basically any normal cut shirt does not qualify. I'm talking regular long sleeve black shirt does not cut it.
It seems they basically want everyone in turtle necks or buttoned up to the equivalent area of the neck which is a style most people don't already own.
So they have to buy new shirts and the company is not paying for what amounts to a new uniform. Which is shitty.
I've worked for places that required a uniform before and the company provided the first uniform.
I enjoyed it. And it has ended so you can binge the whole series if you want. I recommend watching the 2014 movie also titled What We Do In The Shadows first. It's not required but there are some easter eggs and it gives you the vibe of the universe.