This post will be helpful if you want to try to rename your existing project or duplicating a project.
Places to change
package.json
app.json
info.plist
AppDelegate
XCode – General
XCode – Signing & Capabilities
XCode – Build Settings
app.json
info.plist
AppDelegate
XCode – General
XCode – Signing & Capabilities
XCode – Build Settings
edit CFBundleDisplayName in info.plist
edit rootView value in AppDelegate
Edit Product Name in Build Settings
thank you