Have you heard of stewardship?

This question came up after I heard this term used this way about the church, but some churches I’ve been around have said they are stewardship churches. What this means is still confusing, as I haven’t discussed what that truly means. I did find the following link: https://www.usccb.org/committees/evangelization-catechesis/stewardship. This link is from the United States Conference of Catholic Bishops talking and explaining stewardship.

What is a steward?