Since FEB-2024, Google implemented changes that broke the forum mail system. The consequence is that
no mail at all is sent to Gmail accounts by the forum anymore (registration mail and any notification about replies in topics or PM or even mail sent from the forum interface with the contact button).
We are deeply sorry about that, the devs in charge of the forum infrastructure have been warned of the situation.
11-AUG-2024: as a workaround, instead of entering your mail in the forum profile as xxx@gmail.com, enter xxx@googlemail.com.
As of today, the only way to get an account approved (if you use a Gmail address) for new registration is to warn us through the AOO dev mailing list (dev@openoffice.apache.org, from your registration mail, no need to subscribe it) so that we manually activate your account. Notifications for replies to topics would still not work, you'll have to check from time to time. The icon for notifications top right of the page will tell nonetheless if something occurred in your topics.
LibreOffice 25.2 on Linux Mint Debian Edition (LMDE Faye) and 24.8 portable on Windows 11.