Moving spring cloud config server with s3 backend from bootstrap.yml to application.yml

I created a bootstrap.yml to setup a config server with AWS s3, is it possible to have those configuration on application.yml

spring:
  profiles:
    active: composite
  cloud:
    config:
      server:
        composite:
        - type: awsS3
          region: us-east-1
          bucket: bucket1
        bootstrap: true

this works with bootstrap.yml but not with application.yml, just wanted to know if its not possible with application.yml, if possible what changes i need to make.

I am using sprint boot starter parent v 3.2.4
spring cloud dependencies v 2023.0.0
software.amazon.awssdk s3 v 2.20.26

Start by comparing the supplied bootstrap.yml configuration with the corresponding application.yml behavior under Spring Boot 3.2.4 and Spring Cloud 2023.0.0. Reproduce the failure with the AWS S3 composite backend, then determine whether application.yml is supported and document the required configuration or the limitation.