And Chrome desktop. Also LanguageTool and Google.com.
Firefox as well as LibreOffice do not. Outdated hunspell dictionaries is my guess for FF/libre.
OP here, I am probably guilty of conflating Firefox and LibreOffice with "everything", where typing is concerned.
It's a problem with the EN dictionary for hunspell. Probably it's treating "dis" as a prefix and looks for words that allow "dis" as a prefix, but then can't find any suggestions that use "dis" PFX but are like "sapear". The dictionary would be better if it had a rule that it should try to change "dis-s." to "dis-." (treating it as a possibly repeated character).