Thank you for the heads up...ouch!
The following packages were automatically installed and are no longer required:
kwayland-data libdbusmenu-qt5-2 libkf5auth-data libkf5auth5 libkf5configgui5
libkf5configwidgets-data libkf5configwidgets5 libkf5crash5 libkf5guiaddons5
libkf5iconthemes-bin libkf5iconthemes-data libkf5iconthemes5 libkf5idletime5
libkf5notifications-data libkf5service-bin libkf5service-data libkf5service5
libkf5wallet-data libkf5waylandclient5 libphonon4qt5-4 libpolkit-qt5-1-1
libqt5help5 libqt5quick5 libqt5quickwidgets5 libqt5webengine-data phonon4qt5
phonon4qt5-backend-vlc python3-dbus.mainloop.pyqt5 python3-sip xsane
xsane-common
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
falkon hplip-gui kwayland-integration libkf5notifications5 libkf5wallet-bin
libkf5wallet5 libkwalletbackend5-5 libqt5designer5 libqt5positioning5
libqt5sensors5 libqt5texttospeech5 libqt5waylandclient5 libqt5waylandcompositor5
libqt5webchannel5 libqt5webenginecore5 libqt5webenginewidgets5 libqt5webkit5
phantomjs python3-pyqt5 qtwayland5
The following NEW packages will be installed:
libntfs-3g883
The following packages will be upgraded:
apt-file exim4-base exim4-config exim4-daemon-light gir1.2-gtksource-3.0
libel-api-java libgoa-1.0-0b libgoa-1.0-common libgraphene-1.0-0 libgspell-1-1
libgspell-1-common libgssdp-1.0-3 libgtksourceview-3.0-1
libgtksourceview-3.0-common libgtkspell3-3-0 libgucharmap-2-90-7 libgupnp-1.0-4
libhdf5-103 libhdf5-cpp-103 libhdf5-openmpi-103 libpanel-applet3
libqt5concurrent5 libqt5core5a libqt5dbus5 libqt5gui5 libqt5network5
libqt5opengl5 libqt5printsupport5 libqt5qml5 libqt5quick5 libqt5quickwidgets5
libqt5sql5 libqt5sql5-sqlite libqt5svg5 libqt5test5 libqt5widgets5
libqt5x11extras5 libqt5xml5 libsqlite3-0 ntfs-3g python-numpy
qt5-gtk-platformtheme sqlite3 task-english task-laptop tasksel tasksel-data
47 upgraded, 1 newly installed, 20 to remove and 0 not upgraded.
Need to get 23.2 MB/23.2 MB of archives.
After this operation, 207 MB disk space will be freed.
Update: placing qt5-gtk-platformtheme temporarily on hold removes all of the above mess. Now this is more like it!The following NEW packages will be installed:
libntfs-3g883
The following packages have been kept back:
libqt5core5a libqt5dbus5 libqt5gui5 libqt5network5 libqt5opengl5
libqt5printsupport5 libqt5qml5 libqt5quick5 libqt5quickwidgets5 libqt5sql5
libqt5sql5-sqlite libqt5svg5 libqt5test5 libqt5widgets5 libqt5x11extras5
libqt5xml5 qt5-gtk-platformtheme
The following packages will be upgraded:
apt-file exim4-base exim4-config exim4-daemon-light gir1.2-gtksource-3.0
libel-api-java libgoa-1.0-0b libgoa-1.0-common libgraphene-1.0-0 libgspell-1-1
libgspell-1-common libgssdp-1.0-3 libgtksourceview-3.0-1
libgtksourceview-3.0-common libgtkspell3-3-0 libgucharmap-2-90-7 libgupnp-1.0-4
libhdf5-103 libhdf5-cpp-103 libhdf5-openmpi-103 libpanel-applet3
libqt5concurrent5 libsqlite3-0 ntfs-3g python-numpy sqlite3 task-english
task-laptop tasksel tasksel-data
30 upgraded, 1 newly installed, 0 to remove and 17 not upgraded.
Need to get 11.5 MB/11.6 MB of archives.
After this operation, 526 kB of additional disk space will be used.