I am no doctor, so definitely be sure to ask your doctor these questions if you haven't already. I can only answer your question from having spoken with others in the community that have had surgery, and the answer is no.
Surgery is not a cure for Crohn's Disease/IBD. Unfortunately, there is no cure. The root of the problem is our immune system. So it is possible that after surgery, the immune system can react/flare up again.
However, with that said, many have had surgery and have found tremendous relief.
Here is an article you might find interesting: https://inflammatoryboweldisease.net/living/ostomy-surgery-decision
I hope this helps some.
Best, Elizabeth (team member)