@silverwizard
Bandcamp won't let you, but one "Paweł Grzybek" has set this service up based on another. It's limited to 100,000 daily requests, so he requests people don't hammer it too much.
https://pawelgrzybek.com/generate-rss-feed-for-bandcamp-artists-using-deno-deploy
I guess that means you can't get notified the very second another album comes out, but I bet once per day wouldn't strain Paweł's limits too much.