Ah yes, I forgot to mention this.
On my previous instructions, I mentioned:
Let’s clean up the block element that adds in the link first. There’s an empty paragraph block inside of it.
It’s important that you do this. I’ve inspected the page and it’s still there.
To check for empty paragraphs, use the Block Editor’s live view as shown here – https://share.getcloudapp.com/4gunl16G
Note: This happens quite a lot. This unwanted paragraph block appears when you click within the workspace. The editor automatically adds this in and assumes you want to type or add some text. It’s causing unwanted space.