The bug
As can be seen in the video, the END key doesn't put the cursor right at the end. It puts it right before the last letter.
MC-148668
END key doesn't put cursor right at end (Book & Quill)
Resolved
Cannot Reproduce
2
(Unassigned)
Confirmed
UI
Minecraft 1.14 Pre-Release 5, Minecraft 1.14, 1.14.4, 19w46b, 1.15.1
Retrieved
I am unable to reproduce this in 1.16.3