Microsoft Teams doesn't convert markdown pasted in either.
It used to do code blocks pretty nicely. I don't know if they've removed that functionality, but I can't get it to trigger anymore.
Not sure if you'll see this, but while you are correct Teams doesn't do proper markdown, it does handle HTML fairly well even just copy/pasting it into the post; it converts to Teams' markup language pretty well.
For a few schedule things that needed more management than just a shared calendar, I wrote a script to pull the schedule out of Outlook and convert it to an HTML schedule sheet which I can just copy/paste right into Teams with perfect formatting (I send it via a bot, but it works for users to just paste into the doc also)
For a few schedule things that needed more management than just a shared calendar, I wrote a script to pull the schedule out of Outlook and convert it to an HTML schedule sheet which I can just copy/paste right into Teams with perfect formatting (I send it via a bot, but it works for users to just paste into the doc also)