I’ve had some experience with Reality Composer, but for coding, I only know SwiftUI. Is it possible to create an AR App with ARKit only with SwiftUI？If so, could you share some suggestions or links on getting started?
You can use ARKit inside a SwiftUI app. You can also use RealityKit to build ARKit apps in a declarative way.
Here are the links to resources and sample code to help you get started: