On many (most?) editors, while I am editing the text of a numbered list, if I press apple-left-arrow (i.e. go to start of line) the cursor moves to the start of the text (but stays to the right of the number). This is consistent with the concept of a “line of text” in an outline or numbered list I believe. To edit the structure of the numbered list, one would use the tab (for indent further) or shift-tab (for indent less) or delete (for remove this line).
In obsidian 0.13.23, the apple-left-arrow moves the cursor to the left of the number.
Proposed solution is to mimic the behavior of other editors and have apple-left-arrow move to the start of the text, but remain right of the number.