HA Core cannot see all the integrations on the network

I am using HA Core on a balena OS. The Integrations page does not automatically see the devices on the network e.g. printers, which is not the case with HA OS. How can I see them? Is there a different way?

Use a supported operating system?

Thank you for your reply, Prodigyplace. It’s appreciated. We need to use the balena OS for other purposes hence the problem.