Thank you for your input! We will consider this functionality in upcoming releases if it is popular. Everyone, please continue voting for this feature if you consider it important.
Mac Nacario commented
I suggest you put a Comment field on wordpress backup on WP Toolkit. Currently there is Creation Date, Size and Filename. It would be helpful writing the state of the site upon backup, especially when investigating a site issue.
I want to write notes to each backup of my wordpress site to avoid confusion. can you allow that function?