Hi @Michael
Thank you for Reaching Microsoft Q&A Forum!
I would like to clarify that AD Connect is not replaced with Entra Connect. Microsoft has rebranded Azure AD Connect as Microsoft Entra Connect, if your Entra Connect is working as expected you no need to do any change and no need to change the server. However, ensure your Microsoft Entra connect version is V2.
If you wish would decommission the server and install the Entra connect in new server, you can, but make sure that you have backup configuration as like earlier server.
Reference: What is Microsoft Entra Connect?
Prerequisites for Microsoft Entra Connect
Hope this helps. Do let us know if you any further queries by responding in the comments section.
Thanks,
Akhilesh V.
If this answers your query, do click Accept Answer
and Yes
for was this answer helpful. And, if you have any further query do let us know.