https://help.libreoffice.org/latest/en-US/text/scalc/04/01020000.html https://help.libreoffice.org/6.4/en-US/text/scalc/04/01020000.html says: "Hold down Alt+Enter+Shift to apply the cell format of the input cell to the entire cell range." — I think that it is more logic to write Alt+Shift+Enter than Alt+Enter+Shift. — Alt+Enter+Shift does nothing. https://help.libreoffice.org/latest/es/text/scalc/04/01020000.html correctly says: "Alt + Mayús + Intro".
Seth Chaiklin committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/help/commit/4941e91343b1f0d78af7e79c59907bc893309685 tdf#138714 update help page for Calc shortcut keys