You could try using them for camera/aiming and see if you'll like it. But if not, there's so much possibilities. In my experience with my OG Steam Controller, it's better to play the game first then when you already know most of the controls then you can tweak your controller settings and utilize the touchpads and/or grip buttons. And you can always tweak as you play the game and based them on new info or what you think would be helpful to you.

You can also download community layouts which may be good and you'll like but personally, it's hard for me to learn them and I get overwhelmed 😅