KDE had 4 talks at this year's FOSDEM conference. Here's the recordings.
From Gtk to Qt: A Strange Journey, part 2
The continuation of the original talk from Dirk Hohndel and Linus Torvalds about the port of Subsurface from Gtk to Qt, now with mobile in mind.
The next generation communication and collaboration client
Where does KDE land in the Snap and Flatpak world?
KDE SlimBook Q&A