HelpDesk SaaS software files migration to subdomain and Wildcard sub-domain configuration

In order to create a sub-domain login link for clients to log in, we would like to configure the Wildcard sub-domain.

In an effort to let the HelpDesk software work effectively, we would like to move the software files from a subdirectory to a sub-domain or any respective folder.

We couldn’t move the software files to the main/root folder as the WordPress files are residing…

You can check these links to learn how does the wildcard can be configured without impacting the software performance

https://www.jakweb.ch/faq/a/264/wildcard-sub-domain
https://www.jakweb.ch/faq/a/265/signup-page-wildcard-sub-domain

Looking for an expert to handle this issue…