The CiteThisPage extension contains a TODO commend and attempts to explicitly turn off tidy:
https://gerrit.wikimedia.org/g/mediawiki/extensions/CiteThisPage/+/d26be29cbbb4e3e3a873a28267ee2ca25798474a/includes/SpecialCiteThisPage.php#171
This should have been generating hard-deprecation warnings in the logs since 1.33:
https://gerrit.wikimedia.org/g/mediawiki/core/+/c4305332d7aebe95c4a32e64d875d19ef7180128/includes/parser/ParserOptions.php#307
It's possible the wrapping issues discussed were fixed by the Remex tidy migration. But this should be investigated, since setTidy(false) was made a no-op in
83a22b7fcde35954461356d4e3859647f45f9cba.