Noting this duplication of topic, I hope this question can also address, what else might be easily done?
This is a bug, or should be added to editing notes.
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is not a great help.
This is indeed a duplicate in trying to understand what's happening. About 40 (2/3rds of the 60 or so) meta.se backslash backtick search results relate to this.
In the question & answer editor, the input:
produces the output: ```
Whereas in the comments, the same string correctly renders a code block containing a back-tick.