I became a Catholic 25 years ago and this has been my experience.
The converts from a Protestant Church, my Church was the Church of Christ, have generally become Catholic while still loving the faith they came from. When I became a Catholic, I lost nothing of my love for the Bible, my love for Jesus, my wonderful experiences as a child growing up in a loving Christian life.
Everything I had, I still have and so very much more. I do have to admit that sometimes I miss the wonderful congregational singing. I have discussed that with other Protestant Converts. We laugh about it but say, “But we have the Body, Blood, Soul and Divinity of Christ.” We are satisfied beyond words.
I have noticed that the opposite is true when people leave the Catholic Church. They take nothing with them. I have never quite understood why there is such a difference.