What advantage do credit cards from banks have over proprietary credit cards?

Credit cards from banks typically come with a wider range of rewards and benefits compared to proprietary credit cards. These benefits may include sign-up bonuses, cash back rewards, travel rewards, and access to exclusive perks such as airport lounge access or concierge services. Additionally, bank credit cards often have lower interest rates and fees compared to proprietary credit cards. Banks also usually offer higher credit limits and more flexible payment options for their credit card holders.