I wanted to bring up a few enhancement ideas for the Author block, based on popular patterns found in themes:

• have an option for a circular avatar image
• have an option to put the avatar to the right or above the author name (stacked)
• have an option to put the byline next to the author's name
• include an optional "All posts by [author]" link
• allow for each text component (byline, author name, bio text) to have different text styling - bold / italic / uppercase / letter-spacing / different size / different font family / different color

Here are some visual examples:

Describe the solution you'd like
Author block combines a couple elements - avatar, name, bio, and byline placeholder. Those kinds of complex blocks tend to be tricky because they are inflexible and would require a lot of block options/styles to allow for different design variations. How about if we broke it up into individual blocks (author name, avatar, and bio)? We could then put them back together however we wanted, and offer as block patterns. The downside would be the block pattern discoverability which isn't great right now. Or maybe we could have both the combined author block and the separate blocks?