Condensed output:

Fwupd Info: saving new firmware metadata to: "/home/tom/.cache/fwupd/remotes.d/lvfs/metadata.xml.gz"
kf5.kio.kio_http: Can't communicate with kded_kcookiejar!
Fwupd Error 0 Failed to update metadata for lvfs: checksum failure: failed to verify data, expected 98261db7124c8026fb88f77768787efc2f8355c3
qml: message: Failed to update metadata for lvfs: checksum failure: failed to verify data, expected 98261db7124c8026fb88f77768787efc2f8355c3

********************************************************************************

Expanded output:

plasma-discover 
(0x7fff61803d40) Warning: Icon theme "elementary" not found.
qrc:/qml/Feedback.qml:2:1: module "org.kde.userfeedback" is not installed
adding empty sources model QStandardItemModel(0x55a7c79c8110)
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/kf5/klauncher'
kdeinit5: Launched KLauncher, pid = 1254, result = 0
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
kdeinit5: opened connection to :0
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so' from launcher.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/http.so'
org.kde.plasma.libdiscover: Couldn't find a category for  "fwupd-backend"
Fwupd Info: saving new firmware metadata to: "/home/tom/.cache/fwupd/remotes.d/lvfs/metadata.xml.gz"
kf5.kio.kio_http: Can't communicate with kded_kcookiejar!
Fwupd Error 0 Failed to update metadata for lvfs: checksum failure: failed to verify data, expected 98261db7124c8026fb88f77768787efc2f8355c3
qml: message: Failed to update metadata for lvfs: checksum failure: failed to verify data, expected 98261db7124c8026fb88f77768787efc2f8355c3
took really long to fetch KNSBackend(0x55a7c76bedf0, name = "/usr/share/knsrcfiles/k3btheme.knsrc")
took really long to fetch KNSBackend(0x55a7c7756880, name = "/usr/share/knsrcfiles/discover_ktexteditor_codesnippets_core.knsrc")
took really long to fetch PackageKitBackend(0x55a7c7798f90)
(0x7fffd6854a30) Warning: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1061, resource id: 31457302, major code: 18 (ChangeProperty), minor code: 0
kdeinit5: PID 1257 terminated.
Properties constructor called
TRANSLATIONS_DIR: Loading translation file "qterminal_en_US.qm" from dir /usr/share/qterminal/translations
load success: false
Icon theme "elementary" not found.
QDir::exists: Empty or null file name
Canot open file "/home/tom/.config/qterminal.org/qterminal_bookmarks.xml"
Trying to load translation file from dir "/usr/share/Lubuntu"
Trying to load translation file from dir "/usr/local/share"
Trying to load translation file from dir "/usr/share"
Trying to load translation file from dir "/var/lib/snapd/desktop"
Trying to load translation file from dir "/usr/share/qtermwidget5/translations"
default KB_LAYOUT_DIR:  "/usr/share/qtermwidget5/kb-layouts"
loadAllColorSchemes
Shell program: "/bin/bash"
("/bin/bash")
[1893:1893:0813/164521.398440:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.
dbus-daemon[1040]: Activating service name='org.a11y.atspi.Registry' requested by ':1.12' (uid=1000 pid=1848 comm="/opt/google/chrome/chrome --incognito --enable-cra" label="unconfined")
dbus-daemon[1040]: Successfully activated service 'org.a11y.atspi.Registry'
SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry


**************************************************************************

I'm wondering what the security ramifications of these messages are.

****************************************************************************8


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION