Hello,
It is available to use a domain name instead of an IP address or computer name when connecting via Remote Desktop Connection. This can be achieved by setting up a Domain Name System (DNS) record that points to the IP address of your server.
You need to register a domain name with a registrar of your choice. Then, create a DNS record (like an A record or CNAME record) that points your domain (e.g., remote.domainname.ca) to the IP address of your server. Once the DNS changes have propagated, your team should be able to connect to the server using the domain name.
Here is a reference: https://www.namecheap.com/support/knowledgebase/article.aspx/319/2237/how-can-i-set-up-an-a-address-record-for-my-domain( Please note that the website is not the official website of Microsoft, pay attention to screening information when browsing )
I hope this helps.
Regards