I can't seem to reproduce this bug in 20.04. Although LibreOffice is a little slow and unresponsive the rest of the shell continues to animate smoothly the whole time (I left another window animating on top).
So I wonder if this bug is either fixed already or caused by some modification to your machine. Please run this command to send us more information about the system: apport-collect 1864301 And if you can please also try booting Ubuntu 20.04 from USB and tell us if you can reproduce it there: http://cdimage.ubuntu.com/daily-live/current/ ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1864301 Title: Resizing LibreOffice style window causes Gnome-Shell to freeze for 10 seconds Status in GNOME Shell: Unknown Status in gnome-shell package in Ubuntu: Incomplete Bug description: When I open LibreOffce Writer and decides to resize the Style window on the right of the screen (press F11 to toggle this window), Gnome- Shell completely freezes for a few seconds. I already rebooted and it's 100% reproducible. I initially reported this bug on Gnome-Shell Gitlab: https://gitlab.gnome.org/GNOME/gnome-shell/issues/2225#note_715411 You can find more info there (journalctl logs) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1864301/+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