When you open a new Document that is not saved anywhere, it may cause data loss to power off your PC. But this is not prevented by Libreoffice, even though it is possible. Please implement this in the suite, the feature to detect the quit signal and block it, opening the GUI "Ctrl+S" dialog instead, and then replicating it. Currently using Fedora KDE Libreoffice Flatpak from Flathub
Thank you for the report. This is already tracked in bug 32884, so marking as a duplicate. (On the GNOME side, there was some improvement in LO 7.6 with the fix for bug 142176.) *** This bug has been marked as a duplicate of bug 32884 ***