Is it possible to use the subdomain with another service like Heroku when using Netlify DNS?

I have purchased my domain name in Google Domains. Then I connected it to Netlify DNS, so I pointed the name servers to Netlify in Google Domains. My question is currently the minieditor.app and www.minieditor.app is being used by Netlify, but if I want to use a subdomain, for example, backend.minieditor.app, is that possible? According to the docs in https://docs.netlify.com/domains-https/netlify-dns/#add-a-domain, it says Apex domains only, but I don’t fully understand it. Is it possible for me to point the subdomain to Heroku, and the Apex domains to Netlify?

hi there, as long as your apex domain is being used to point towards content that is hosted on netlify, i believe that this is possible, yes! Can you confirm that is what you are trying to do?