I opened a support request. Thank you for your response!
One more thing, is it normal that the quick checkout is not available on the final checkout page, only at the bottom inside the payment methods (digital wallet, …) Its a bit confusing in my opinion or is that normal behavior?
Update: now it seems to be working. The issue only seems to occur when I had a recent adres in Apple Pay 🤔 can someone test it with their account…
You can add and try it on this page
https://wearewoow.be/product/custom-mug/