Sometimes KDE artists come up with some tasteful new backgrounds. I happen to think the image below is one of the best yet. I have been experimenting with different Launchers and fonts in the last few days too. One thing I wanted to do was use a font called Inter but I can't get iFont to work with Knox running and I don't want to root the tablet just to install a new font. So I guess I'll see what flipfont offers and see if there's anything close. I may go back to Nova Launcher with Papirus icons too
Plasma Anniversary default background on my Tab A7