Initializing an s3 client in AWS SDK for Swift

The docs for the AWS SDk for Swift describe how to instantiate a service client:

let s3Client = try S3Client(region: "us-east-1")

However since this statement can throw errors it needs to be wrapped in a do catch block as shown on a separate documentation page:

do {
    let s3 = try S3Client(region: "af-south-1")

    // .....
} catch {
    dump(error, name: "Error accessing S3 service")
    exit(1)
}

I've created a public S3Manager class that will contain the specific functions I want to use in my code for manipulating s3 buckets. Typically I would instantiate the client in the class initializer but since it must be wrapped in a do catch block I have taken a different approach:

public class S3manager : ObservableObject {
    
    public var client: S3Client?
    
    public func initializeClient() {
        do {
            client = try S3Client(region: "us-west-2")
        } catch {
            fatalError("Error creating S3 client: \(error)")
        }
    }
    
    public func listBucketFiles(bucket: String) async throws -> [String] {
        
        if let clientInstance = client {
            // ...
        }
    }
}

In my views I will reference the class as a StateObject or ObservedObject as appropriate and be certain to call initializeClient before calling any other methods I implement in the class (in the initial view's onAppear() method for example) Is this the best approach though?