Flathub 告诉我为 LibreOffice 做点什么。老实说，我不知道该怎么做[重复]

这是带有 Windows 10 的 Ubuntu 18.10 双引导。

显然，获取最新 LibreOffice 的唯一方法是通过 Flatpak 或从官方网站下载 zip。

根据下面的“注意”声明，我应该在哪里以及在哪里进行更改？

$ sudo flatpak install flathub org.libreoffice.LibreOffice
Installing in system:
org.libreoffice.LibreOffice/x86_64/stable        flathub 1bf7758dc1d7
  permissions: ipc, network, pulseaudio, wayland, x11, dri
  file access: host, xdg-run/dconf
  dbus access: ca.desrt.dconf, org.gtk.vfs.*
  dbus ownership: org.libreoffice.LibreOfficeIpc0
org.libreoffice.LibreOffice.Locale/x86_64/stable flathub 4a88b1bc88e1
Is this ok [y/n]: y
Installing: org.libreoffice.LibreOffice/x86_64/stable from flathub
[####################] 418 metadata, 4841 content objects fetched; 253117 KiB transferred in 776 seconds
Now at 1bf7758dc1d7.
Installing: org.libreoffice.LibreOffice.Locale/x86_64/stable from flathub
[####################] 10 metadata, 71 content objects fetched; 1021 KiB transferred in 7 seconds
Now at 4a88b1bc88e1.

Note that '/var/lib/flatpak/exports/share' is not in the search path
set by the XDG_DATA_HOME and XDG_DATA_DIRS
environment variables, so applications may not
be able to find it until you set them. The
directories currently searched are:

- /home/pranav/.local/share
- /usr/local/share/
- /usr/share/

如果案件已结案，我没有得到实际帮助：https ://www.reddit.com/r/Ubuntu/comments/av15lq/flathub_warning_help_need_some_help_screenshot/