Hi there,
if you edit the Single Post Content block element.
1. Select the Image showing the avatar.
2. Set its Dynamic Data options to show the Author Avatar of the Current Post.
https://www.screencast.com/t/DmbnDVTZt
Now for each of the other blocks eg. name and description you can set its Dynamic Data too for the appropriate option.
For the Social Icons, by default WP doesn’t include those fields in the user profile admin, so you would be using a plugin (most SEO plugins do ) or function to add those fields? And that will determine what Author Meta to use in the dynamic data.