Safest practice for renaming items in Home Assistant

What’s the simplest (and safest) practice for renaming items in Home Assistant?

I’m not sure if I should change the actual device name or just “name override” of the entity_id …or both.

In cases where I temporarily remove a device from my setup, then add it back again… I want to avoid potential issues where I end up with an orphaned or duplicate “xxxxxxxx_2” item(s) in .storage\core.device_registry.