How do I integrate PostFinance and Stripe Switzerland together?

Many Swiss stores want both: PostFinance (the Swiss Post-owned bank, hugely trusted by older Swiss shoppers) and Stripe CH (best dev experience + global cards). They live happily side-by-side as separate Magento payment methods:

• PostFinance e-Payment — via the official Magento 2 module; handles PostFinance Card, PostFinance e-finance, and a few common credit-card rails as a redirect flow.
• Stripe CH — via the official Stripe Magento 2 module; handles Visa/MC/AMEX, Apple Pay, Google Pay, Klarna, and now TWINT as a payment-method.

We wire both, set Stripe as default for <CHF 200 orders (lower fees on cards) and PostFinance as default for >CHF 500 (higher trust on big-ticket items). Refund + chargeback flows tested for both. PostFinance settles to your Swiss IBAN; Stripe settles to whatever bank you nominate.