* Preformatted text became one long line, for example any structured text that is posted
* Lost the yellow alerts and red warning formatting
* Lists decided to practice social distancing and spacing of some text in general was excessive
* Exchange is a narrower page, so sometablesgotverycramped
Plus a few other things. I've cleaned up some articles as I came across them when using them, but if there are any you find ping them below (probably best as a new reply to this top comment to save too much digging around) and someone will hopefully take a look.