It's public beta, weird look and ai assistance, so idk how I feel about it but hey old good game gets a rare update, I'll take it
SRC: https://steamcommunity.com/games/200710/announcements/detail/701031128264347698
Everything on Steam has controller support thanks to the awesomeness of Steam Input
I guarantee that people have already been playing this game on PC with controller just fine for years.