Thank you for your sacrifice. Unfortunately for you, uncommon good writing practices have become a mark of AI generated text, which is very useful.

Unfortunately you can't get your em dash back, ever. Sorry for the inconvenience.

Like hell we can't. Unsophisticated plebs (not you) viewing sophistication with suspicion is nothing new. And certainly no reason to demote one's standards.

Long live the em-dash. Or en-dash surrounded by spaces if you prefer UK style (which I do).