[Feature]: Spike: payment methods

[Frodigo]

How the project can be improved?

Analyze how to implement these payment methods:

• [ ] PayPal express
• [ ] Braintree
• [ ] PayPal PayFlow Link
• [ ] PayPal PayFlow Pro
• [ ] PayPal PayFlow Pro Vault
• [ ] PayPal PayFlow Advanced

What are the acceptance criteria?

• [ ]

Additional information

No response

Code of Conduct

• [X] I agree to follow this project's Code of Conduct