Ok so follow the steps here:
1. Edit the Post page hero which is set to Draft currently.
2. Select the Container that holds the post title and meta, then Copy it:
https://www.screencast.com/t/M9fUATjb
3. Create a new block element and paste the container block copied in #2.
4. Set the new block element to be Post Meta Template:
https://docs.generatepress.com/article/block-element-post-meta-template/
There might be some additional tweaks needed but let’s start with this.