Comment by nottorp

Depends entirely on the genre of the game, the resources available to the developer, and the pressures they're facing from management. Most of the games in my library either have controller support as an afterthought or not at all. Controllers have been the minority choice in PC gaming since about forever and I haven't noticed that changing. What has changed is the gaming industry has created de facto standards and idioms for how PC games should handle. Play early shooters with their default setting and you'll get to experience all kinds of key mapping that send modern gamers looking for mods to fix it or another game to play. These days you can pretty much count on WASD for movement, the mouse for looking. Nobody ships a game with movement bound to the arrow keys or modal mouse look. Game developers now meet gamers where they are, and for PC games that is almost always mouse and keyboard, except in those genres where gamers expect controllers.