Moving to the start of a word, from inside the word@1.1
In an existing contenteditable with “Hello World” in it, putting the cursor between Wo and then using the hardware keyboard to cursor left.

Chrome (Desktop)

Safari (Desktop)

Firefox (Desktop)

Android API 28

Android API 27

Android API 26

Android API 25

Android API 24

Android API 23

iOS 11.4

No result in Simple DOM contenteditable. This is the result from React-managed contenteditable.