Howdy,
Today look at this page on the main website:
https://documentation.libreoffice.org/en/english-documentation/
and clicking on the 'LibreOffice Online 6.3' document generates an error
message:
No webpage was found for the web address:
https://nextcloud.documentfoundation.org/s/BBkk6QxBCfH47BH
Best wishes,
Drew