Hmm that refresh rate seems a bit low to me but I doubt that's the issue. I wonder if you still see it in the snap.. so you could try uninstalling the deb and installing the snap and see if that works better for you:
$ sudo apt-get remove --purge libreoffice $ sudo snap install libreoffice -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913333 Title: Calc auto-filter menu inaccessible with fractional scaling enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1913333/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs