We are aware of this issue in high resolution displays, but you can quickly address that with a few steps:

  1. Right click the Notebooks.exe icon and select Properties from the context menu
  2. Switch to the Compatibility section
  3. Click the checkbox Change Hi DPI settings
  4. Check the Override Hi DPI scaling behavior, and choose System (Enhanced)

Depending on the Windows version you use, titles and naming of the preferences sections may vary, and on older Windows versions you may find a setting Disable display scaling on hight DPI settings instead.

Notebooks uses Tiny Fonts on High Resolution Screens