Why do Vodyani populations lose approval "from planets?"
A bit of context: I have just over 100hrs in ES2 but I still consider myself a novice to the game and to 4X in general. I only play a few times every few months, so it's been a slow process trying to learn all the games systems. I picked up Vodyani on my most recent playthrough (not my first time playing them, but I'm certainly no expert) and, after several turns, got a confusing report on some some of my systems: I was losing a ton of approval "from planets." Could someone explain to me what this means in simple terms? I thought Vodyani were ship-bound. After all, you can't terraform planets with them, so why are planet conditions affecting my population? Or, is this something of a misnomer, and something else is actually affecting my approval?