This is mainly for Kovid
- I did a calibre EPUB to DOCX conversion the using default settings.
- I opened that DOCX in Word 365 Version 2201 (Build 14827.20158)
- Predictably, Word reported Compatibility issues - all DOCXs from calibre, and many from elsewhere have this issue - it's easily fixed in Word via File->Info->Convert Compatibility.
- In Word I saved the DOCX as a PDF, which I've attached.
- My PDF viewer finds no occurrences of "youre" or "youll".
Noteworthy: Word's PDF is 4 times bigger than your PDF
BR