EDIT: They are working again in different URLs:
https://anto-finnstark.artstation.com/rss

The old ones don't work for me:
https://www.artstation.com/anto-finnstark.rss

EDIT-2: It seems that openrss has added ArtStation feeds too:
(Thanks to @mark@programming.dev for noticing).

e.g. https://openrss.org/artstation.com/patrick_ganas

ArtStation RSS Feeds stopped working a few days ago. Probably along with the recent UI changes, although I am not 100% sure.

I sent an email to support@artstation.com asking if it's a bug or an intentional change. I haven't got an answer yet.

I'm posting it here to let people know and just in case anyone has more info... or some alternative. I don't see ArtStation featured in the usual services: openrss.org, RSSHub.

EDIT: There is hope. An ArtStation post from 15h ago appeared on my RSS reader. The RSS Feed still doesn't work, but this should mean feeds are not 100% dead.