+1. You can put the markup outside the wiki link as in _[[page|title]]_, but that only works for bold and italic etc, but obviously not for monospace since monospace disables interpretation of what’s inside. Making backticks work for aliases would be fantastic (and hopefully not too hard to implement?)
+1 I would also add the the solution @rab suggested affects the entire link and you can’t target a specific section with italics or bold: [[The TeXbook|Knuth's _The TeXbook_]]