On a new install, I noticed that Emacs systematically lowers or raises what it identifies as subscripts or superscripts (sometimes correctly, sometimes incorrectly...) due to the presence of
Syntax highlighting is enough for me, and I do not want Emacs to do any WYSIWYG mess, so I need to deactivate this.
I found several old notes that addressed other causes of this, and tried them all, but it seems my issue is a different one.
I have GNU emacs-25.2.1 (under Linux gentoo).
I am not using any of the "advanced modes" (yatex, auctex) as they do even more visual things that I do not like. I am just using the stock
latex-mode, which used to be fine for my purpose.