GoodNotes might be keeping your tablet awake to ensure uninterrupted usage, but you can try adjusting your tablet's settings to override this behavior. Here are a few steps you can take: https://www-pikepass.com

Check Display Settings: Go to your tablet's settings, navigate to "Display" or "Display & Brightness," and look for the "Sleep" or "Auto-Lock" option. Set it to a shorter duration or "Never" if you want to disable sleep mode entirely.

Developer Options: If you don't see the desired settings, enable "Developer Options" by tapping the "Build Number" multiple times in "About Tablet." Once enabled, look for the "Stay Awake" option and turn it off.

Third-Party Apps: Consider using apps like "Tasker" or "Automate" to create custom rules for sleep mode. These apps allow you to manage power settings more precisely.

App-Specific Settings: Check GoodNotes' settings to see if there's an option to disable its sleep prevention feature. If not, you might need to contact their support for further assistance.