This isn’t a resourcing issue. It’s a lack of knowledge and skipped a step issue.

When I did this. My small team took a whole sprint to make sure that assets were packed. That tilemaps were made. That audio files were present and we did an audit to make sure nothing extra was packaged on disk. Today, because of digital stores and just releasing zip files, no one cares what they ship and often you can see it if you investigate the files of any Unity or Unreal engine game. Just throw it all over the fence.