Deleting the content or deleting the post whole while writing/editing it? I’d not have thought of doing that. If penning something new, then deciding no, think you go out, and discourse offering to safe the draft or bin it.
Deleting access only via the … menu certainly prevents accidental deletion. The history still shows the text though whatever good or bad needed to go.
That’s actually above the blue line and associated with your previous post - I don’t want to delete that(!). Here’s a larger screenshot that shows that what’s on the screen behind may vary.