Were you able to change the URL successfully? Most of the items are in the database only. If you have SQL server hostname change, you might need to do some additional changes in Orchestrator/Identity/Webhooks config files.
Just putting an additional information here we had come across.
If you are planning to use a customized name for orchestrator, the name should resolve IP of the orchestrator server which means the DNS entry should be done for the name. (Adding the name and IP in hosts file will work temporarily but while licensing the orchestrator, it can cause issues due to unresolved IP). If the customized name is not returning the IP when you ping the name, orchestrator won’t come up. Just an issue we had come across when tried to install with customized name.
Adding “/” in URL is a whole different story anyway.