In german version of Acrobat Reader, Version 2023.001.20143, but also in many earlier version, when opening the recent file dialog with "File -> Show all recent files" (in German: "Datei -> Alle zuletzt verwendeten Dateien anzeigen...") and selecting the check buttons of 2 or more files, a small sub-dialog opens on the right (as shown in the attached image). It says there "Offen" for "Open", but this is the imperative form of the verb, which must be "Öffnen" in German.