I'm glad you were able to resolve the libreoffice issue by installing hunspell-en-gb. The fact that Featherpad isn't picking it up is likely a Featherpad issue that you should report to that project.
** Changed in: libreoffice (Ubuntu) Status: Incomplete => Invalid -- 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/1878465 Title: Lubuntu 20.04/LibreOffice Lacks Spellchecker Status in libreoffice package in Ubuntu: Invalid Bug description: There is no spell check available in the installed version of LibreOffice. The "hunspell-??-??" package is missing from the installation of LibreOffice. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: libreoffice 1:6.4.3-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: LXQt Date: Wed May 13 14:12:37 2020 InstallationDate: Installed on 2020-04-23 (19 days ago) InstallationMedia: Lubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.default.apport: [modified] mtime.conffile..etc.default.apport: 2020-04-23T16:04:30.368000 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1878465/+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