Log entries, such as page-protection, should appear in the board history page.
(Regression from T90071: Add log entries to history pages?)
Probably deletion still appears, but should be verified.
E.g. my protection here https://test.wikipedia.org/w/index.php?title=Special%3ALog&type=protect&user=&page=User+talk%3AQuiddity+%28WMF%29&year=&month=-1&tagfilter=
should appear here https://test.wikipedia.org/w/index.php?title=User_talk:Quiddity_%28WMF%29&action=history
(Example of how it looks in wikitext contentmodel pages, here https://test.wikipedia.org/w/index.php?title=User:Quiddity_%28WMF%29&action=history )