Moving from 7.2 to 25.2.3.2 F1 Help not working

This is also true in writer.
Raspberry PI running Debian trixie and LO 25.2.3.2, F1 does nothing. In Tools/Customize/Keyboard there is nothing connected to F1.
I have these packages installed:
liblibreoffice-java 4:25.2.3-2+deb13u2
libreoffice-base-core 4:25.2.3-2+deb13u2
libreoffice-calc 4:25.2.3-2+deb13u2
libreoffice-common 4:25.2.3-2+deb13u2
libreoffice-core 4:25.2.3-2+deb13u2
libreoffice-help-common 4:25.2.3-2+deb13u2
libreoffice-help-en-us 4:25.2.3-2+deb13u2
libreoffice-style-colibre 4:25.2.3-2+deb13u2
libreoffice-uiconfig-calc 4:25.2.3-2+deb13u2
libreoffice-uiconfig-common 4:25.2.3-2+deb13u2
libreoffice-uiconfig-writer 4:25.2.3-2+deb13u2
libreoffice-writer 4:25.2.3-2+deb13u2

in Firefox I can open /usr/share/libreoffice/help/index.html.
How do I connect that to F1 in calc and writer?
Thanks and Happy New Year,
Mike