It's similar to the Face ID failures of the iPhone 13's screen, later fixed.
Apple Notes: Everything You Need to Know [2024] - Paperlike
Random Lines while Writing with Apple Pencil – Notability
Draw or write in Notes on iPad - Apple Support
Shock Apple U-Turn Leaves Future Of iPhone Software Lockdown Unknown
Apple Pencil may add Touch Bar-like display with see-through effect
An Apple Pencil for iPad Air 2, iPad mini and iPhone: Adonit launches new $79 Pixel stylus as worthy competitor to Apple Pencil - 9to5Mac
Amazingly Useful Apple Pencil Tips 2023: Transform your iPad Productivity!
Nebo for iPad Review: Close but No Cigar - Mark Ellis Reviews
Top 25 Apple Pencil tips and tricks everyone should know
Adobe Ink stylus and Slide ruler aim to replace your sketch pad with an iPad (video)
Apple Pencils can't draw straight on third-party replacement iPad screens
Apple Pencil (2nd Generation) Review
Diving Into Using FigJam for iPad With Apple Pencil, by Nelson Taruc