Thanks for your answer.
Indeed, it is not backticks. It is actually single quotes. And when there are on purpose backticks, they are interpreted as they should.
It can be illustrated with the example below :
Waiting for host is available through the [`wait_for`](https://docs.ansible.com/ansible/latest/wait_for_module.html) module.
Let's say that we want to wait for port 22xy to be available as a wait condition. But as the stop operation and the start step both take some time, let's consider a `delay` before starting to wait.
On this example, wait_for and delay are correctly written (monospaced), but the text after Let’s is rendered (on the editor pane) as if it was a code block. And it goes back to normal text on the next single quote.
Note that the presence of some backticked words is out of the picture. The same behavior is observed even without such words.
Nevertheless, it is not that critical as it only affects the editor panel. The text display (markdown preview, whatever the chosen style is correct. But it is a little bit annoying.