The panel's bus stabs should match breaker type; incompatible breakers can loosen, arc, or stop working

https://brooksyxlg002.nexorafield.com/posts/the-anatomy-of-an-electrical-panel-a-visual-walkthrough

The panel's bus stabs must match breaker type; incompatible breakers can loosen up, arc, or stop working, positioning fire risks and voiding maker guarantees and listings.