https://www.techpowerup.com/315153/latest-windows-11-update-lets-you-write-anywhere-in-the-windows-ui-to-input-text
 
Microsoft just released a transformative new update to Windows Ink for Windows 11, the component that includes applications and features based on pen/stylus based input. With this latest update, you can input text into the text input box or form of any modern UI application by simply writing over it using a pen/stylus, on a device with a touchscreen sensitive enough for pen-based input methods. Windows Ink does the handwriting-to-text input conversions for Windows 11. This should come especially handy when you're trying to input text with special characters, Math input, or Chemistry input. The update to Windows Ink is part of a non-security Update Preview Microsoft released for Windows 11, which is documented under KB5031455. To get it, simply make Windows 11 check for updates.
 
This is very interesting. A very good method for personal customization.