Being surprised by this convo probably means your manager did a poor job of communicating (or you did a poor job of listening to what your manager was saying).
You should be having biweekly (or better yet weekly) 1 on 1s with your boss. For the most part, you shouldn't be surprised by things if you have a good rapport with your manager.
I think you'll be fine, but be sure to communicate things with your boss as soon as they come up. Also, don't just come to your boss with problems, but bring solutions as well.
If you have a tech lead on your team try building a rapport with them as well. They'll be busy, but they'll ideally be in a position where many of their goals will be mentoring based. Leverage this to learn about the projects, company, and the culture.
You should be having biweekly (or better yet weekly) 1 on 1s with your boss. For the most part, you shouldn't be surprised by things if you have a good rapport with your manager.
I think you'll be fine, but be sure to communicate things with your boss as soon as they come up. Also, don't just come to your boss with problems, but bring solutions as well.
If you have a tech lead on your team try building a rapport with them as well. They'll be busy, but they'll ideally be in a position where many of their goals will be mentoring based. Leverage this to learn about the projects, company, and the culture.