nicksmit

AdminNotes allows administrators and editors to add formatted notes to posts and pages. These notes can serve as reminders, tasks, or recommendations for content editors. Additionally, when enabled, users are notified to read these admin notes before editing the content.
Features: 
– Add formatted notes using a rich text editor in both Classic and Gutenberg editors. 
– Display a notification message to users when editing a post or page if admin notes are present. 
– Option to enable or disable the notification on a per-post/page basis.

AdminNotes

Adds an admin notes block to post and page editing screens with formatted text support and user notifications.

brownbrowniebrownerson

A Note Above allows you to save notes on your WP Admin Dashboard. After installing A Note Above a widget will be added to your Dashboard. Add as many notes as you would like. Share your notes by role or keep a note to yourself. 
Each note is collapsed. Simply click on the title of your note to reveal the notes contents.

A Note Above – WP Dashboard Notes

A WordPress Note taking system to live on your WP Admin dashboard.

AdminNotes vs A Note Above – WP Dashboard Notes