You can make your controller and its inputs appear in obs by using this tool,its not necessary really but its a pretty cool thing in my opinion.U can see how it works and see in my controller run in the leaderboard.U can also customize your controller by making it a Playstation,Xbox or even a NES controller ,and dont worry because on all of the variants intups work the same,and u can also do some other stuff with it,but i think thats the most fun part.If u have troubles with setting up the tool u can find a lot of tutorials on the internet.

Have fun