Network in a subdomain.prymary.com but, new sites in newsites.primary.com, too

Hi guys! its possible to be in sites network subdomain for example app.mywebsite.com (primary network) and to create a new site he’s created in newwebsite.mywebsite.com? And no, newwebsite.app.mywebsite.com

Ex: https://ecohospedagem.lojaintegrada.com.br/ (is client site) and https://app.lojaintegrada.com.br/painel/login is a control panel

My example above do not use wordpress, but is just to understand the logic …