Bypass initial setup; Moving from one server to another

Jenkins setup:
version 2.426.1
Linux - Oracle Linux 8

Is there a way to move an existing Jenkins from one server to another and not have to go through the initial setup process? I’ve copied the entire Jenkins Home directory and made modifications for the jenkins.service file to match the existing system (while changing the hostname in any config files that I’m aware of).
Our systems have to run on HTTPS and as such HTTP is disabled. I’m 90% sure that I’m getting to the site but I’m getting a 502 Proxy Error when I go to the site. The httpd confg files are set up the same as the original server, with the hostname corrections.
I think the Proxy error is due to the site wanting to go through the initial setup. I see things in the Jenkins log file that say “Jenkins initial setup is required. …”
What I don’t understand is where that is coming from since I’ve pointed the jenkins.service to point to where the Jenkins Home is located (not default location) and the Home location has all jobs, plugins, etc, that were on the original system.

The other option is to tell the jenkins startup to use my https settings and then move everything to the new home location. I’m just not sure how to make any of this happen.

I’m not getting errors in the httpd logs nor do I see any errors in the Jenkins log. I do see one warning:
WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath
The rest is INFO until the lines about initial setup. The last two lines in the jenkins log:
INFO jenkins.InitReactorRunner$1#onAttained: Completed initialization
INFO hudson.lifecycle.Lifecycle#onReady: Jenkins is fully up and running

Any help or insight is greatly appreciated.

OK, I fiddled around with the jenkins.service file some more and am no longer seeing the intial setup stuff in the jenkins.log.