Yes, Catholics agree with Protestants on this much, hence the Catechism :
Either one has faith in the LORD Jesus Christ or one does not.
Do we agree on this much?
We can agree on so much more than this.
My Mom and Dad were a wonderful example of how a Methodist and Catholic could live in harmony. While they did not agree on everything, they were fully supportive of each other’s beliefs. Dad became ordained as a Deacon in the Catholic Church. That could not have happened without Mom’s full participation and support. Mom was very involved in her local church, the greater United Methodist Church, and Church Women United. Mom was well known and loved at Dad’s church, and Dad was well known and loved at Mom’s church, to the point where he led Bible studies there. They joked that Dad was a Cathodist and Mom was a Metholic.
One day when I was in high school, I told Dad that I was praying that Mom would become a Catholic like us. He told me that I should hope and pray that I could become as good a Christian as Mom.