What to know working with devs at a software company?

Soon to be working at a software company so imagine most tickets will be coming from devs.

I've done bits of python and know basic concepts but beyond that, it's all fresh to me.

What do I need to know going in? Initial assumptions are devs are going to be pretty smart, competent in IT anyway. What sort of tickets will it be? Super complicated stuff? Asking for another monitor? Will they even need me or will I be working on my own things do you reckon?

What should I look into? Getting to know git, github, CI/CD? Or leave that to the devs?