I have the same small issues indeed, Kwin always opens windows super small at first, no client side decorations irks me for some apps. I am slowly falling in lo

I have the same small issues indeed, Kwin always opens windows super small at first, no client side decorations irks me for some apps. I am slowly falling in love with Mate though, I'm using it on Solus where it has the Ark darker theme by default (the default look on Ubuntu is truly your grandma's desktop, I really don't understand that move) and it's really snappy and functional. I work in it all day (VM on Windows because company requires Windows...)