My writing used to be littered with them, but I now eschew the em in favour of en, as it has become too strong an anti-shibboleth.
I have also taken to being sloppier in my prose, as I’ve had stories rejected for being “written by AI” - when they’re shorts I wrote more than a decade ago. Reworked them to sound like a moron, accepted. Sigh.
I have a similar issue. I tend to have a very “structured” type of writing. Say on slack or Reddit for example. Using markdown formatting. Lists with bulletpoints etc. And I tend to write long detailed explanations, sometimes too long if I am being honest.
But now I find myself adding noise and imperfections to my writing (not that it was perfect) to make it more human, which is kinda silly.