I would like to see it applied against some of the right wing innovations that shmoel and his fellow travelers are so enthusiastic about. Historically, most Torah Jews actually worked for a living.
It applies to wheat, barley, spelt, rye and oats. It applies to chassidim and non-chassidim alike. That’s right. Yoshon is not a chumra. Chodosh is assur min hatorah.
It would apply to all of Orthodoxy. Orthodoxy as a movement, going by that name, is a 19th-century novelty: a reaction to the Emancipation and the Reform.
Anything with a hechsher from Badatz Eda HaChareidit has no chodosh products in it. You will also see on products from Paskesz that they also indicate no chodosh (I think they say it is all yoshon).
From what I know, chodosh is d’oraisa in EY and d’rabbonon in chutz la’aretz. Many people in chu”l are becoming makpid on yoshon products as well and I know that even in LA there is a list of bakeries that have yoshon products.