At least with the current settings of Lubuntu 19.04 and libreoffice-calc 1:6.2.2-0ubuntu2, I can confirm this is not an issue.
** Attachment added: "libreoffice tooltips working correctly" https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1813209/+attachment/5255497/+files/libreoffice.webm -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1813209 Title: bubble help flashes in libreoffice Status in libreoffice package in Ubuntu: New Bug description: Hovering over any of the icons on the toolbar in libreoffice causes the bubble help to appear and disappear quickly. I'm attaching a video (mp4) of what I mean. Version: 6.1.4.2 Build ID: 1:6.1.4-0ubuntu0.18.10.1 CPU threads: 8; OS: Linux 4.18; UI render: default; VCL: gtk3_kde5; Locale: en-CA (en_CA.UTF-8); Calc: group threaded To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1813209/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp